Shanghai Huabang Industrial Business Network - high-voltage transformer

[15KV current transformer]LDZJ-15Q series high-voltage current transformer

2026-6-20 14:26:05

LDZJ-15Q series high-voltage current transformer

[15KV current transformer]LMZB-15 series high-voltage current transformer

2026-6-20 14:25:56

LMZB-15 series high-voltage current transformer

[15KV current transformer]LFZD-15 type current transformer

2026-6-20 14:25:48

The LFZD-15 current transformer is a multi turn through type, cast insulation, indoor device used for current and energy measurement and relay protection in 15kV AC systems.

Introduction to LFZD-15 Current Transformer

LFZD-15 type current transformer

[electronic instrument transformer]LEMZKJH8-0.5 Type Open close Electronic Current Transformer

2026-6-20 13:09:19

1�� Overview (Description)
LEMZKJH8-0.5 type switchable electronic current transformer is mainly suitable for measuring current in power systems with rated frequency of 50Hz or 60Hz and rated voltage of 35kV and below. It is widely used in compact fully insulated ring main switch cabinets. This product complies with IEC60044-8:2002 and GB/T20840.8-2007 "Electronic Current Transformers" standards.

3�� Structure Introduction (Construction)
The LEMZKJH8-0.5 type open close electronic current transformer is an open close type, which adopts ABS engineering plastic shell and epoxy resin integrated casting molding. It has the characteristics of good insulation performance, beautiful appearance, and easy installation. This product is small in size, light in weight, and does not require maintenance. During installation, two semicircles are wrapped around the phase separated cable and clamped tightly with clamps, integrated with the cable, creating a harmonious and beautiful appearance. Especially its open close structure can be directly clamped onto the cable, achieving tool free installation without modifying the cable. The measurement range is wide, and the secondary open circuit does not generate high voltage. The secondary output is a small voltage signal with extremely low power consumption. There is no need to convert large signals into small signals, simplifying the error source and improving the stability and accuracy of the entire system.

4�� Technical data
1. The primary insulation of LEMZKJH8-0.5 switchable electronic current transformer is ensured by cables, and the product only assesses the insulation performance of the secondary winding. The secondary winding can withstand a 3kV power frequency withstand voltage to ground. (Because 2, Technical Data Form):

one	Rated primary current Rated primary current	20��630A
two	Rated secondary voltage (measurement level) Rated secondary voltage for measurement	1.5V��4V
three	Rated secondary voltage (protection level) Rated secondary voltage for protection	150mV, 225mV (core type coil)
four	Rated output digital quantity (measurement level) Rated digital output for measurement	0x2D41
five	Rated digital output for protection level	0x01CF/0x00E7
six	Measurement level accuracy level Accuracy class for measurement	0.2 level (class)
seven	Protection level accuracy level Accuracy class for protection	5P25 (iron core coil) 5P25(core type coil)
eight	rated frequency Rated frequency	50Hz (or 60Hz)
nine	rated load Rated burden	2k��20k��,2M��
ten	Rated primary time constant Rated primary time constant	100mS
eleven	Rated wake-up time Rated wake-up time	0
twelve	ambient temperature Ambient temperature	��40�桫��40��

5�� Outline and installation dimension diagram

LEMZKJH8-0.5 Open close Electronic Current Transformer

[electronic instrument transformer]OESU-JH8 electronic mutual inductance collector

2026-6-20 13:09:10

1�� Overview (Description)
The collector of electronic transformers can collect protection current signals through Rogowski coils, measure current signals through LPC low-power coils, and collect voltage signals through capacitive dividers. The energy harvesting coil or laser provides power for the collector, while also taking into account AC and DC sampling.

3�� Structure Introduction (Construction)
The collector of the photoelectric transformer is used to sample the analog input, perform analog-to-digital conversion, and transmit the data to the combiner through optical fiber.
The energy and data are transmitted between the collector and the combiner through only two optical fibers.
The collector provides three analog inputs, namely voltage, protection current, and measurement current, which enter the analog-to-digital conversion circuit through low-pass filtering. The analog-to-digital conversion circuit adopts a high-precision, high sampling rate 16 bit AD converter, and its signal-to-noise ratio can reach 90 decibels.
The collector adopts an ultra-low power 16 bit RISC system CPU, ensuring good performance with low power consumption.
The power circuit is responsible for providing power to various parts of the collector and extracting sampling interrupts. In the sampling interrupt, the CPU starts data sampling and conversion, and packages the converted data. The packaged data is modulated and sent to the combiner through optical fiber.
The main working power supply of the collector comes from the laser power supply. The energy obtained from the energy harvesting coil is rectified and filtered, and used as a thermal backup power source for the collector's operation.

4�� Outline and installation dimension diagram of OESU-JH8 electronic mutual inductance collector

OESU-JH8 electronic mutual inductance collector

[electronic instrument transformer]JLENJH8-220W type digital photoelectric combination transformer

2026-6-20 13:09:02

JLENJH8-220W digital photoelectric combined transformer adopts digital technology, advanced photoelectric technology, and integrates the essence of domestic high-voltage electrical equipment technology to develop a new type of high-voltage current measurement and voltage monitoring device. It can be used to measure the current and voltage in high-voltage power supply systems for the purpose of measurement and protection. Suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 220kV for energy metering, current measurement, voltage monitoring, and relay protection. This product complies with the standards of IEC60044-7:1999, IEC60044-8:2002, and GB/T20840 · 7-2007 "Electronic Voltage Transformers" and GB/T20840 · 8-2007 "Electronic Current Transformers".

3�� Structure Introduction (Construction)
1. JLENJH8-220W digital photoelectric combination transformer is a new type of electronic combination transformer. It is different from traditional electromagnetic current and voltage transformers, as it adopts optoelectronic isolation, data digitization, and optical communication technology. The use of highly reliable electrical insulation design greatly enhances reliability.
2. It is also different from the photoelectric combination transformer based on Faraday magneto-optical effect and Kerr electro-optic effect. Its voltage signal adopts the principle of capacitive voltage division, and the current signal sensor is a low-energy current transformer and a Rogowski coil. The current signal is converted into a digital signal at high potential and transmitted to low potential through optical fiber. So the measurement accuracy is high, and the resistance to vibration, external temperature changes, electromagnetic interference, and operating life are all guaranteed.
3. In this device, the power supply at high potential is an important technological innovation. This device adopts multiple energy supply technologies such as low potential laser power supply and high potential energy extraction, and the product has high operational reliability.
4. The insulation column of JLENJH8-220W digital photoelectric combination transformer adopts a silicone rubber outer sheath umbrella skirt, which is a pillar type. Lightweight, simple, and lightweight structure; Has good anti pollution ability and high reliability.

4�� Technical data
1. Rated insulation level: 252/460/1050kV
2. The partial discharge level meets the standards of GB/T20840.7-2007 "Electronic Voltage Transformers" and GB/T20840.8-2007 "Electronic Current Transformers".
4. Technical data form:
Table 1: Rated primary current and rated dynamic and thermal current

Rated primary current Rated primary current (A)	Rated short-time thermal current (Ith) Rated short time thermal current(kA/s)	Rated dynamic stability current (Idyn) Rated dynamic current(kA)
fifty	31.5/1	eighty
sixty	31.5/1	eighty
seventy-five	31.5/1	eighty
one hundred	31.5/1	eighty
150, 200	31.5/3	eighty
300-3150	50/3	one hundred and twenty-five

Table 2: Common technical parameters

one	Maximum voltage of equipment Highest voltage of equipment	252kV
two	Rated primary voltage Rated primary voltage	220/��3kV
three	Rated primary current Rated primary current	50��3150A
four	Rated secondary voltage (voltage measurement, protection level) Rated secondary voltage (voltage measurement and grade of protection)	1.5V,4V,5V,4/��3V,6.5/��3V
five	Rated secondary voltage (current measurement level) Rated secondary voltage (current measurement grade)	1.5V��4V
six	Rated secondary voltage (current protection level) Rated secondary voltage (current protection grade)	150mV (hollow coil) 150mV(air-core coil)
seven	Rated secondary voltage (current protection level) Rated secondary voltage (current protection grade)	225mV (iron core coil) 225mV(core type coil)
eight	Rated output digital quantity (measurement level) Rated digital output for measurement	0x2D41
nine	Rated output digital quantity (protection level) Rated digital output for protection	0x01CF/0x00E7
ten	Measurement level accuracy level Accuracy class for measurement	0.2, 0.2S class
eleven	Protection level accuracy level Accuracy class for protection	5TPE (hollow coil) 5TPE(air-core coil)
twelve	Protection level accuracy level Accuracy class for protection	5P30 (iron core coil) 5P30(core type coil)
thirteen	rated frequency Rated frequency	50Hz (or 60Hz)
fourteen	rated load Rated burden	2k��20k��,2M��
fifteen	Rated symmetry of transient characteristics Short circuit current multiple Rated symmetrical short-circuit-current factor for transient performance	thirty
sixteen	Rated primary time constant Rated primary time constant	100mS
seventeen	Rated wake-up time Rated wake-up time	0
eighteen	ambient temperature Ambient temperature	��40�桫��80��
nineteen	Environmental pollution level Pollution class	��
twenty	Wire connection method Connection method of wires	Through type, connecting type penetrating type��point-type connection

5�� Outline and installation dimension diagram

JLENJH8-220W digital photoelectric combination transformer

[electronic instrument transformer]JLENJH8-110W type digital photoelectric combination transformer

2026-6-20 13:08:53

JLENJH8-110W digital photoelectric combined transformer adopts digital technology, advanced photoelectric technology, and integrates the essence of domestic high-voltage electrical equipment technology to develop a new type of high-voltage current measurement and voltage monitoring device. It can be used to measure the current and voltage in high-voltage power supply systems for the purpose of measurement and protection. Suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, voltage monitoring, and relay protection. This product complies with the standards of IEC60044-7:1999, IEC60044-8:2002, and GB/T20840 · 7-2007 "Electronic Voltage Transformers" and GB/T20840 · 8-2007 "Electronic Current Transformers".

3�� Structure Introduction (Construction)
1. JLENJH8-110W digital photoelectric combination transformer is a new type of electronic combination transformer. It is different from traditional electromagnetic current and voltage transformers, as it adopts optoelectronic isolation, data digitization, and optical communication technology. The use of highly reliable electrical insulation design greatly enhances reliability.
2. It is also different from the photoelectric combination transformer based on Faraday magneto-optical effect and Kerr electro-optic effect. Its voltage signal adopts the principle of capacitive voltage division, and the current signal sensor is a low-energy current transformer and a Rogowski coil. The current signal is converted into a digital signal at high potential and transmitted to low potential through optical fiber. So the measurement accuracy is high, and the resistance to vibration, external temperature changes, electromagnetic interference, and operating life are all guaranteed.
3. In this device, the power supply at high potential is an important technological innovation. This device adopts multiple energy supply technologies such as low potential laser power supply and high potential energy extraction, and the product has high operational reliability.
4. The insulation column of JLENJH8-110W digital photoelectric combination transformer adopts a silicone rubber outer sheath umbrella skirt, which is a pillar type. Lightweight, simple, and lightweight structure; Has good anti pollution ability and high reliability.

4�� Technical data
1. Rated insulation level: 126/230/550kV
2. The partial discharge level meets the standards of GB/T20840.7-2007 "Electronic Voltage Transformers" and GB/T20840.8-2007 "Electronic Current Transformers". (The conditions of the partial discharge test according to GB/T20840·7-2007 and GB/T20840·8-2007 will be fulfilled without exception.)
4. Technical data form:
Table 1: Rated primary current and rated dynamic and thermal current

Rated primary current Rated primary current (A)	Rated short-time thermal current (Ith) Rated short time thermal current(kA/s)	Rated dynamic stability current (Idyn) Rated dynamic current(kA)
fifty	31.5/1	eighty
sixty	31.5/1	eighty
seventy-five	31.5/1	eighty
one hundred	31.5/1	eighty
150, 200	31.5/3	eighty
300-3150	50/3	one hundred and twenty-five

Table 2: Common technical parameters

one	Maximum voltage of equipment Highest voltage of equipment	126kV
two	Rated primary voltage Rated primary voltage	110/��3kV
three	Rated primary current Rated primary current	50��3150A
four	Rated secondary voltage (voltage measurement, protection level) Rated secondary voltage (voltage measurement and grade of protection)	1.5V,4V, 5V,4/��3V,6.5/��3V
five	Rated secondary voltage (current measurement level) Rated secondary voltage (current measurement grade)	1.5V��4V
six	Rated secondary voltage (current protection level) Rated secondary voltage (current protection grade)	150mV (hollow coil) 150mV(air-core coil)
seven	Rated secondary voltage (current protection level) Rated secondary voltage (current protection grade)	225mV (iron core coil) 225mV(core type coil)
eight	Rated output digital quantity (measurement level) Rated digital output for measurement	0x2D41
nine	Rated output digital quantity (protection level) Rated digital output for protection	0x01CF/0x00E7
ten	Measurement level accuracy level Accuracy class for measurement	0.2, 0.2S class
eleven	Protection level accuracy level Accuracy class for protection	5TPE (hollow coil) 5TPE(air-core coil)
twelve	Protection level accuracy level Accuracy class for protection	5P30 (iron core coil) 5P30(core type coil)
thirteen	rated frequency Rated frequency	50Hz (or 60Hz)
fourteen	rated load Rated burden	2k��20k��,2M��
fifteen	Rated symmetry of transient characteristics Short circuit current multiple Rated symmetrical short-circuit-current factor for transient performance	thirty
sixteen	Rated primary time constant Rated primary time constant	100mS
seventeen	Rated wake-up time Rated wake-up time	0
eighteen	ambient temperature Ambient temperature	��40�桫��80��
nineteen	Environmental pollution level Pollution class	��
twenty	Wire connection method Connection method of wires	Through type, connecting type penetrating type��point-type connection

5�� Outline and installation dimension diagram

JLENJH8-110W digital photoelectric combination transformer

[electronic instrument transformer]JLENJH8-66W type digital photoelectric combination transformer

2026-6-20 13:08:45

1�� Overview (Description)
JLENJH8-66W digital photoelectric combined transformer adopts digital technology, advanced photoelectric technology, and integrates the essence of domestic high-voltage electrical equipment technology to develop a new type of high-voltage current measurement and voltage monitoring device. It can be used to measure the current and voltage in high-voltage power supply systems for the purpose of measurement and protection. Suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 66kV for energy metering, current measurement, voltage monitoring, and relay protection. This product complies with the standards of IEC60044-7:1999, IEC60044-8:2002, and GB/T20840 · 7-2007 "Electronic Voltage Transformers" and GB/T20840 · 8-2007 "Electronic Current Transformers".

3�� Structure Introduction (Construction)
1. JLENJH8-66W digital photoelectric combination transformer is a new type of electronic combination transformer. It is different from traditional electromagnetic current and voltage transformers, as it adopts optoelectronic isolation, data digitization, and optical communication technology. The use of highly reliable electrical insulation design greatly enhances reliability.
2. It is also different from the photoelectric combination transformer based on Faraday magneto-optical effect and Kerr electro-optic effect. Its voltage signal adopts the principle of capacitive voltage division, and the current signal sensor is a low-energy current transformer and a Rogowski coil. The current signal is converted into a digital signal at high potential and transmitted to low potential through optical fiber. So the measurement accuracy is high, and the resistance to vibration, external temperature changes, electromagnetic interference, and operating life are all guaranteed.
3. In this device, the power supply at high potential is an important technological innovation. This device adopts multiple energy supply technologies such as low potential laser power supply and high potential energy extraction, and the product has high operational reliability.
4. The insulation column of JLENJH8-66W digital photoelectric combination transformer adopts a silicone rubber outer sheath umbrella skirt, which is a pillar type. Lightweight, simple, and lightweight structure; Has good anti pollution ability and high reliability.

4�� Technical data
1. Rated insulation level: 72.5/160/350kV
2. The partial discharge level meets the standards of GB/T20840.7-2007 "Electronic Voltage Transformers" and GB/T20840.8-2007 "Electronic Current Transformers".

4. Technical data form:
Table 1: Rated primary current and rated dynamic and thermal current

Rated primary current Rated primary current (A)	Rated short-time thermal current (Ith) Rated short time thermal current(kA/s)	Rated dynamic stability current (Idyn) Rated dynamic current(kA)
fifty	31.5/1	eighty
sixty	31.5/1	eighty
seventy-five	31.5/1	eighty
one hundred	31.5/1	eighty
150, 200	31.5/3	eighty
300-3150	50/3	one hundred and twenty-five

Table 2: Common technical parameters

one	Maximum voltage of equipment Highest voltage of equipment	72.5kV
two	Rated primary voltage Rated primary voltage	66/��3kV
three	Rated primary current Rated primary current	50��3150A
four	Rated secondary voltage (voltage measurement, protection level) Rated secondary voltage (voltage measurement and grade of protection)	1.5V,4V, 5V,4/��3V,6.5/��3V
five	Rated secondary voltage (current measurement level) Rated secondary voltage (current measurement grade)	1.5V��4V
six	Rated secondary voltage (current protection level) Rated secondary voltage (current protection grade)	150mV (hollow coil) 150mV(air-core coil)
seven	Rated secondary voltage (current protection level) Rated secondary voltage (current protection grade)	225mV (iron core coil) 225mV(core type coil)
eight	Rated output digital quantity (measurement level) Rated digital output for measurement	0x2D41
nine	Rated output digital quantity (protection level) Rated digital output for protection	0x01CF/0x00E7
ten	Measurement level accuracy level Accuracy class for measurement	0.2, 0.2S class
eleven	Protection level accuracy level Accuracy class for protection	5TPE (hollow coil) 5TPE(air-core coil)
twelve	Protection level accuracy level Accuracy class for protection	5P30 (iron core coil) 5P30(core type coil)
thirteen	rated frequency Rated frequency	50Hz (or 60Hz)
fourteen	rated load Rated burden	2k��20k��,2M��
fifteen	Rated symmetry of transient characteristics Short circuit current multiple Rated symmetrical short-circuit-current factor for transient performance	thirty
sixteen	Rated primary time constant Rated primary time constant	100mS
seventeen	Rated wake-up time Rated wake-up time	0
eighteen	ambient temperature Ambient temperature	��40�桫��80��
nineteen	Environmental pollution level Pollution class	��
twenty	Wire connection method Connection method of wires	Through type, connecting type penetrating type��point-type connection

5�� Outline and Installation Dimensional Drawing of JLENJH8-66W Digital Optoelectronic Combination Transformer

JLENJH8-66W digital photoelectric combination transformer

[electronic instrument transformer]JENJH8-220W series electronic voltage transformers

2026-6-20 13:08:36

1�� Overview (Description)
The JENJH8-220W series electronic voltage transformer is an insulated grease sealed and fully enclosed product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 220kV, where the neutral point is effectively grounded. It is used for energy metering, voltage monitoring, and relay protection. This product complies with the standards of IEC60044-7:1999 and GB/T20840.7-2007 "Electronic Voltage Transformers".

3�� Structure Introduction (Construction)
The JENJH8-220W series electronic voltage transformer is a fully enclosed pillar structure that adopts the principle of capacitive voltage division. The external insulation consists of a silicone rubber outer sheath and umbrella skirt, which have the characteristics of arc resistance, UV resistance, aging resistance, long service life, pollution resistance, and moisture resistance. It is suitable for installation in any position and direction. The measurement range is wide, and there will be no strong current generated during secondary short circuit. The secondary output is a small voltage signal, with minimal power consumption. There is no need to convert large signals into small signals, simplifying the error source and improving the stability and accuracy of the entire system.

4�� Technical data of JENJH8-220W series electronic voltage transformer
1. Rated insulation level: 252/460/1050kV
2. The partial discharge level complies with the GB/T20840.7-2007 standard for electronic voltage transformers. (The conditions of the partial discharge test according to GB/T20840·7-2007��electronic voltage transformer��will be fulfilled without exception.)
3. If users have other technical requirements, they can contact our factory. (If the customer has other requirement for technology, they can contact our factory.)
4. Technical data form:

one	Maximum voltage of equipment Highest voltage of equipment	252kV
two	Rated primary voltage Rated primary voltage	220/��3kV
three	Rated secondary voltage Rated secondary voltage	1.5V,4V, 5V,4/��3V,6.5/��3V
four	Rated output digital quantity Rated digital output	0x2D41
five	Measurement level accuracy level Accuracy class for measurement	0.2 level (class)
six	Protection level accuracy level Accuracy class for protection	3P
seven	rated frequency Rated frequency	50Hz (or 60Hz)
eight	rated load Rated burden	0.001VA��0.01VA��0.1VA��0.5VA
nine	Rated wake-up time Rated wake-up time	0
ten	ambient temperature Ambient temperature	��40�桫��80��
eleven	Environmental pollution level Pollution class	��

5�� Outline and installation dimension diagram

JENJH8-220W series electronic voltage transformer

[electronic instrument transformer]JENJH8-66W series electronic voltage transformers

2026-6-20 13:08:28

1�� Overview (Description)
The JENJH8-66W series electronic voltage transformer is an insulated grease sealed fully enclosed product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 66kV where the neutral point is effectively grounded. It is used for energy metering, voltage monitoring, and relay protection. This product complies with the standards of IEC60044-7:1999 and GB/T20840.7-2007 "Electronic Voltage Transformers".

3�� Structure Introduction (Construction)
The JENJH8-66W series electronic voltage transformer is a fully enclosed pillar structure that adopts the principle of capacitive voltage division. The external insulation is a silicone rubber outer sheath and umbrella skirt, which has the characteristics of arc resistance, UV resistance, aging resistance, long service life, pollution resistance, and moisture resistance. It is suitable for installation in any position and direction. The measurement range is wide, and there will be no strong current generated during secondary short circuit. The secondary output is a small voltage signal, with minimal power consumption. There is no need to convert large signals into small signals, simplifying the error source and improving the stability and accuracy of the entire system.

4�� Technical data
1. Rated insulation level: 72.5/160/350kV
2. The partial discharge level complies with the GB/T20840.7-2007 standard for electronic voltage transformers. (The conditions of the partial discharge test according to GB/T20840·7-2007��electronic voltage transformer��will be fulfilled without exception.)
4. Technical data form:

one	Maximum voltage of equipment Highest voltage of equipment	72.5kV
two	Rated primary voltage Rated primary voltage	66/��3kV
three	Rated secondary voltage Rated secondary voltage	1.5V,4V,5V,4/��3V,6.5/��3V
four	Rated output digital quantity Rated digital output	0x2D41
five	Measurement level accuracy level Accuracy class for measurement	0.2 level (class)
six	Protection level accuracy level Accuracy class for protection	3P
seven	rated frequency Rated frequency	50Hz (or 60Hz)
eight	rated load Rated burden	0.001VA��0.01VA��0.1VA��0.5VA
nine	Rated wake-up time Rated wake-up time	0
ten	ambient temperature Ambient temperature	��40�桫��80��
eleven	Environmental pollution level Pollution class	��

5�� Outline and installation dimension diagram

JENJH8-66W series electronic voltage transformer

[electronic instrument transformer]LENJH8-220W type digital photoelectric current transformer

2026-6-20 13:08:19

1�� Overview (Description)
LENJH8-220W digital photoelectric current transformer adopts digital technology, advanced photoelectric technology, and integrates the essence of domestic high-voltage electrical equipment technology to develop a new type of high-voltage current measuring device. It can be used to measure the current in high-voltage power supply systems for metering and protection purposes. Suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, and relay protection. This product complies with the standards of IEC60044-8:2002 and GB/T20840 · 8-2007 "Electronic Current Transformers".

3�� Structure Introduction (Construction)
1. The LENJH8-220W digital photoelectric transformer is a new type of electronic current transformer. It is different from traditional electromagnetic current transformers, as it adopts optoelectronic isolation, data digitization, and optical communication technology. The use of highly reliable electrical insulation design greatly enhances reliability.
2. It is also different from photoelectric current transformers based on Faraday magneto-optical effect and Kerr electro-optic effect. Its current signal sensor is a low-energy current transformer and a Rogowski coil. The current signal is converted into a digital signal at high potential and transmitted to low potential through optical fiber. So the measurement accuracy is high, and the resistance to vibration, external temperature changes, electromagnetic interference, and operating life are all guaranteed.
3. In this device, the power supply at high potential is an important technological innovation. This device adopts multiple energy supply technologies such as low potential laser power supply and high potential energy extraction, and the product has high operational reliability.
4. The insulation column of the LENJH8-220W digital photoelectric transformer adopts a silicone rubber outer sheath umbrella skirt, which is a pillar type. Lightweight, simple, and lightweight structure; Has good anti pollution ability and high reliability.

4�� Technical parameters
1. Rated insulation level: 252/460/1050kV
2. The partial discharge level complies with the GB/T20840 · 8-2007 standard for electronic current transformers. (The conditions of the partial discharge test according to GB/T20840·8-2007��electronic current transformer��will be fulfilled without exception.)
3. If users have other technical requirements, they can contact our factory. (If the customer has other requirement for technology, they can contact our factory.)
4. Technical data form:
Table 1: Rated primary current and rated dynamic and thermal current

Rated primary current Rated primary current (A)	Rated short-time thermal current (Ith) Rated short time thermal current(kA/s)	Rated dynamic stability current (Idyn) Rated dynamic current(kA)
fifty	31.5/1	eighty
sixty	31.5/1	eighty
seventy-five	31.5/1	eighty
one hundred	31.5/1	eighty
150, 200	31.5/3	eighty
300-3150	50/3	one hundred and twenty-five

Table 2: Common technical parameters

one	Maximum voltage of equipment Highest voltage of equipment	252kV
two	Rated primary current Rated primary current	50��3150A
three	Rated secondary voltage (measurement level) Rated secondary voltage for measurement	1.5V��4V
four	Rated secondary voltage (protection level) Rated secondary voltage for protection	150mV (hollow coil) 150mV(air-core coil)
five	Rated secondary voltage (protection level) Rated secondary voltage for protection	225mV (iron core coil) 225mV(core type coil)
six	Rated output digital quantity (measurement level) Rated digital output for measurement	0x2D41
seven	Rated output digital quantity (protection level) Rated digital output for protection	0x01CF/0x00E7
eight	Measurement level accuracy level Accuracy class for measurement	0.2, 0.2S class
nine	Protection level accuracy level Accuracy class for protection	5TPE (hollow coil) 5TPE(air-core coil)
ten	Protection level accuracy level Accuracy class for protection	5P30 (iron core coil) 5P30(core type coil)
eleven	rated frequency Rated frequency	50Hz (or 60Hz)
twelve	rated load Rated burden	2k��20k��,2M��
thirteen	Rated symmetry of transient characteristics Short circuit current multiple	thirty
fourteen	Rated primary time constant Rated primary time constant	100mS
fifteen	Rated wake-up time Rated wake-up time	0
sixteen	ambient temperature Ambient temperature	��40�桫��80��
seventeen	Environmental pollution level Pollution class	��
eighteen	Wire connection method Connection method of wires	Through type, connecting type penetrating type��point-type connection

5�� Outline and installation dimension diagram

LENJH8-220W digital photoelectric current transformer

[electronic instrument transformer]LENJH8-110W type digital photoelectric current transformer

2026-6-20 13:08:10

1�� Overview (Description)
LENJH8-110W digital photoelectric current transformer adopts digital technology, advanced photoelectric technology, and integrates the essence of domestic high-voltage electrical technology to develop a new type of high-voltage current measuring device. It can be used to measure the current in high-voltage power supply systems for metering and protection purposes. Suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, and relay protection. This product complies with the standards of IEC60044-8:2002 and GB/T20840 · 8-2007 "Electronic Current Transformers".

3�� Structure Introduction (Construction)
1. The LENJH8-110W digital photoelectric transformer is a new type of electronic current transformer. It is different from traditional electromagnetic current transformers, as it adopts optoelectronic isolation, data digitization, and optical communication technology. The use of highly reliable electrical insulation design greatly enhances reliability.
2. It is also different from photoelectric current transformers based on Faraday magneto-optical effect and Kerr electro-optic effect. Its current signal sensor is a low-energy current transformer and a Rogowski coil. The current signal is converted into a digital signal at high potential and transmitted to low potential through optical fiber. So the measurement accuracy is high, and the resistance to vibration, external temperature changes, electromagnetic interference, and operating life are all guaranteed.
3. In this device, the power supply at high potential is an important technological innovation. This device adopts multiple energy supply technologies such as low potential laser power supply and high potential energy extraction, and the product has high operational reliability.
4. The insulation column of the LENJH8-110W digital photoelectric transformer adopts a silicone rubber outer sheath umbrella skirt, which is a pillar type. Lightweight, simple, and lightweight structure; Has good anti pollution ability and high reliability.

4�� Technical data
1. Rated insulation level: 126/230/550kV
2. The partial discharge level complies with the GB/T20840 · 8-2007 standard for electronic current transformers.
3. If users have other technical requirements, they can contact our factory.

4. Technical data form:

Table 1: Rated primary current and rated dynamic and thermal current

Rated primary current Rated primary current (A)	Rated short-time thermal current (Ith) Rated short time thermal current(kA/s)	Rated dynamic stability current (Idyn) Rated dynamic current(kA)
fifty	31.5/1	eighty
sixty	31.5/1	eighty
seventy-five	31.5/1	eighty
one hundred	31.5/1	eighty
150, 200	31.5/3	eighty
300-3150	50/3	one hundred and twenty-five

Table 2: Common technical parameters

one	Maximum voltage of equipment Highest voltage of equipment	126kV
two	Rated primary current Rated primary current	50��3150A
three	Rated secondary voltage (measurement level) Rated secondary voltage for measurement	1.5V��4V
four	Rated secondary voltage (protection level) Rated secondary voltage for protection	150mV (hollow coil) 150mV(air-core coil)
five	Rated secondary voltage (protection level) Rated secondary voltage for protection	225mV (iron core coil) 225mV(core type coil)
six	Rated output digital quantity (measurement level) Rated digital output for measurement	0x2D41
seven	Rated output digital quantity (protection level) Rated digital output for protection	0x01CF/0x00E7
eight	Measurement level accuracy level Accuracy class for measurement	0.2, 0.2S class
nine	Protection level accuracy level Accuracy class for protection	5TPE (hollow coil) 5TPE(air-core coil)
ten	Protection level accuracy level Accuracy class for protection	5P30 (iron core coil) 5P30(core type coil)
eleven	rated frequency Rated frequency	50Hz (or 60Hz)
twelve	rated load Rated burden	2k��20k��,2M��
thirteen	Rated symmetry of transient characteristics Short circuit current multiple Rated symmetrical short-circuit-current factor for transient performance	thirty
fourteen	Rated primary time constant Rated primary time constant	100mS
fifteen	Rated wake-up time Rated wake-up time	0
sixteen	ambient temperature Ambient temperature	��40�桫��80��
seventeen	Environmental pollution level Pollution class	��
eighteen	Wire connection method Connection method of wires	Through type, connecting type penetrating type��point-type connection

5�� Outline drawing and dimensions of installation

LENJH8-110W digital photoelectric current transformer

[electronic instrument transformer]LENJH8-66W type digital photoelectric current transformer

2026-6-20 13:08:02

LENJH8-66W digital photoelectric current transformer adopts digital technology, advanced photoelectric technology, and integrates the essence of domestic high-voltage electrical equipment technology to develop a new type of high-voltage current measuring device. It can be used to measure the current in high-voltage power supply systems for metering and protection purposes. Suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, and relay protection. This product complies with the standards of IEC60044-8:2002 and GB/T20840 · 8-2007 "Electronic Current Transformers".

3�� Structure Introduction (Construction)
1. The LENJH8-66W digital photoelectric transformer is a new type of electronic current transformer. It is different from traditional electromagnetic current transformers, as it adopts optoelectronic isolation, data digitization, and optical communication technology. The use of highly reliable electrical insulation design greatly enhances reliability.
2. It is also different from photoelectric current transformers based on Faraday magneto-optical effect and Kerr electro-optic effect. Its current signal sensor is a low-energy current transformer and a Rogowski coil. The current signal is converted into a digital signal at high potential and transmitted to low potential through optical fiber. So the measurement accuracy is high, and the resistance to vibration, external temperature changes, electromagnetic interference, and operating life are all guaranteed.
3. In this device, the power supply at high potential is an important technological innovation. This device adopts multiple energy supply technologies such as low potential laser power supply and high potential energy extraction, and the product has high operational reliability.
4. The insulation column of the LENJH8-66W digital photoelectric transformer adopts a silicone rubber outer sheath umbrella skirt, which is a pillar type. Lightweight, simple, and lightweight structure; Has good anti pollution ability and high reliability.

4�� Technical data
1. Rated insulation level: 72.5/160/350kV
2. The partial discharge level complies with the GB/T20840 · 8-2007 standard for electronic current transformers.
3. If users have any other technical requirements, they can contact us.
4. Technical data form:

Table 1: Rated primary current and rated dynamic and thermal current

Rated primary current (A)	Rated short time thermal current (It) (kA/s)	Rated dynamic current (Idyn)
fifty	31.5/1	eighty
sixty	31.5/1	eighty
seventy-five	31.5/1	eighty
one hundred	31.5/1	eighty
150, 200	31.5/3	eighty
300-3150	50/3	one hundred and twenty-five

Table 2: Common technical parameters

one	The highest voltage of equipment	72.5kV
two	Rated primary current	50��3150A
three	Rated secondary voltage for measurement	1.5V��4V
four	Rated secondary voltage for protection	150mV (hollow coil) 150mV (air core coil)
five	Rated secondary voltage for protection	225mV (core type coil)
six	Rated digital output for measurement	0x2D41
seven	Rated digital output for protection level	0x01CF/0x00E7
eight	Accuracy class for measurement	0.2, 0.2S class
nine	Accuracy class for protection	5TPE (hollow coil) 5TPE (air core coil)
ten	Accuracy class for protection	5P30 (core type coil)
eleven	Rated frequency	50Hz (or 60Hz)
twelve	Rated load Rated burst	2k��20k��,2M��
thirteen	Rated symmetrical short circuit current factor for transient performance	thirty
fourteen	Rated primary time constant	100mS
fifteen	Rated wake up time	0
sixteen	Environmental temperature	��40�桫��80��
seventeen	Pollution class	��
eighteen	Connection method of wires	Penetrating type, point type connection

5�� Outline drawing and dimensions of installation

LENJH8-66W digital photoelectric current transformer

[electronic instrument transformer]JENJH8-110W series electronic voltage transformers

2026-6-20 13:07:53

1�� Overview (Description)
The JENJH8-110W series electronic voltage transformer is an insulated grease sealed fully enclosed product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV with a neutral point effectively grounded. It is used for energy metering, voltage monitoring, and relay protection. This product complies with the standards of IEC60044-7:1999 and GB/T20840.7-2007 "Electronic Voltage Transformers".

3�� Structure Introduction (Construction)
The JENJH8-110W series electronic voltage transformer is a fully enclosed pillar structure that adopts the principle of capacitive voltage division. The external insulation is a silicone rubber outer sheath and umbrella skirt, which has the characteristics of arc resistance, UV resistance, aging resistance, long service life, pollution resistance, and moisture resistance. It is suitable for installation in any position and direction. The measurement range is wide, and there will be no strong current generated during secondary short circuit. The secondary output is a small voltage signal, with minimal power consumption. There is no need to convert large signals into small signals, simplifying the error source and improving the stability and accuracy of the entire system.

4�� Technical data
1. Rated insulation level: 126/230/550kV
2. The partial discharge level complies with the GB/T20840.7-2007 standard for electronic voltage transformers. (The conditions of the partial discharge test according to GB/T20840·7-2007��electronic voltage transformer��will be fulfilled without exception.)
3. If users have other technical requirements, they can contact our factory. (If the customer has other requirement for technology, they can contact our factory.)

4. Technical data form:

one	Maximum voltage of equipment Highest voltage of equipment	126kV
two	Rated primary voltage Rated primary voltage	110/��3kV
three	Rated secondary voltage Rated secondary voltage	1.5V,4V,5V,4/��3V,6.5/��3V
four	Rated output digital quantity Rated digital output	0x2D41
five	Measurement level accuracy level Accuracy class for measurement	0.2 level (class)
six	Protection level accuracy level Accuracy class for protection	3P
seven	rated frequency Rated frequency	50Hz (or 60Hz)
eight	rated load Rated burden	0.001VA��0.01VA��0.1VA��0.5VA
nine	Rated wake-up time Rated wake-up time	0
ten	ambient temperature Ambient temperature	��40�桫��80��
eleven	Environmental pollution level Pollution class	��

5�� Outline drawing and dimensions of installation

JENJH8-110W series electronic voltage transformer

[electronic instrument transformer]GPCT Broadband Electronic Current Transformer

2026-6-20 13:07:45

GPCT broadband electronic current transformers are used in distribution systems with rated voltages of 10 kV and below, and are used in conjunction with digital instruments and intelligent control equipment to provide small voltage signals proportional to the primary current, enabling current measurement and protection functions. It has the characteristics of large dynamic measurement range, good linearity, unsaturation, wide frequency band, strong anti-interference ability, small size, low power consumption, and no high voltage hazard in secondary open circuit.

Technical parameters of GPCT broadband electronic current transformer:
The product complies with the requirements of GB/T20840.8-2007 "Electronic Current Transformers"
Product maximum voltage: 12Kv
Input 0-200KA
Output: 0~500mA 1A or 5A 5VDC or 4~20MA (customer defined)
Rated frequency: 5-3MHz
Accuracy level: 0.2S, 0.2, 0.5, 5P10 (20)
Rated insulation level: 12/42/75 kV
Product partial discharge level: �� 20pC

[electronic instrument transformer]GPPT high-frequency electronic voltage transformer

2026-6-20 13:07:37

GPPT high-frequency electronic voltage transformer is used in distribution systems with rated voltage of 10 kV and below, and is used in conjunction with digital instruments and intelligent control equipment to provide small voltage signals proportional to the primary voltage, enabling current measurement and protection functions. It has the characteristics of large dynamic measurement range, good linearity, wide frequency band, strong anti-interference ability, small size, low power consumption, and no high voltage hazard in secondary open circuit.

Electrical parameters:
The product complies with the requirements of GB/T20840.8-2007 "Electronic Voltage Transformers"
Product maximum voltage: 12Kv
Rated frequency: 5HZ~5KHZ
Input: 1KV~10KV
Output 5VDC or 4-20mA (customer defined)
Accuracy levels: 0.2S, 0.2, 0.5, 5P10 (20)
Rated insulation level: 12/42/75 kV
Product partial discharge level: �� 20pC

[electronic instrument transformer]JEDJH8-110W High Voltage Electronic Transformer

2026-6-20 13:07:28

JEDJH8-110W High Voltage Electronic Transformer

[electronic instrument transformer]JLESZVJH8-10W electronic combination transformer

2026-6-20 13:07:20

JLESZVJH8-10W electronic combination transformer

[electronic instrument transformer]JLEDZRJH8-10 electronic transformer

2026-6-20 13:07:11

JLEDZRJH8-10 electronic transformer

[electronic instrument transformer]JEDZJH8-35W High Voltage Electronic Transformer

2026-6-20 13:07:03

JEDZJH8-35W High Voltage Electronic Transformer

[electronic instrument transformer]JEDZJH8-12W High Voltage Electronic Transformer

2026-6-20 13:06:54

JEDZJH8-12W High Voltage Electronic Transformer

[electronic instrument transformer]JEDZRJH8-35 High Voltage Electronic Transformer

2026-6-20 13:06:46

JEDZRJH8-35 High Voltage Electronic Transformer

[electronic instrument transformer]JEDZJH8-35 High Voltage Electronic Transformer

2026-6-20 13:06:36

JEDZJH8-35 High Voltage Electronic Transformer

[electronic instrument transformer]JEDZRJH8-10 High Voltage Electronic Transformer

2026-6-20 13:06:27

JEDZRJH8-10 High Voltage Electronic Transformer

[electronic instrument transformer]JEDZJH8-10 High Voltage Electronic Transformer

2026-6-20 13:06:19

JEDZJH8-10 High Voltage Electronic Transformer

[electronic instrument transformer]LEBJH8-110W High Voltage Electronic Transformer

2026-6-20 13:06:10

LEBJH8-110W High Voltage Electronic Transformer

[electronic instrument transformer]LEZZBJH9-35W electronic transformer

2026-6-20 13:06:02

LEZZBJH9-35W electronic transformer

[electronic instrument transformer]LEZZBJH8-35W electronic transformer

2026-6-20 13:05:53

LEZZBJH8-35W electronic transformer

[electronic instrument transformer]LEZZBJH8-12W electronic transformer

2026-6-20 13:05:44

LEZZBJH8-12W electronic transformer

[electronic instrument transformer]LEZZBHJ8-35 series electronic transformer

2026-6-20 13:05:34

LEZZBHJ8-35 series electronic transformer

[electronic instrument transformer]LEMZBJH8-10 electronic transformer

2026-6-20 13:05:26

LEMZBJH8-10 electronic transformer

[electronic instrument transformer]LEZZBJH9-10 High Voltage Electronic Transformer

2026-6-20 13:05:17

LEZZBJH9-10 High Voltage Electronic Transformer

[electronic instrument transformer]LEZZBJH8-10 series high-voltage electronic transformer

2026-6-20 13:05:08

LEZZBJH8-10 series high-voltage electronic transformer

[electronic instrument transformer]LEKZBJH8-0.5 electronic current transformer

2026-6-20 13:04:59

LEKZBJH8-0.5 Electronic Current Transformer

[High-V single-phase transformer]DC-5/20KV single-phase power transformer

2026-6-20 13:03:48

DC-5/20KV single-phase power transformer

[High-V single-phase transformer]HVT60-220/220 Type 35KV Grade PT Single phase Transformer

2026-6-20 13:03:40

The HVT60-220/220 PT transformer is a fully enclosed indoor epoxy resin cast structure, suitable for use in power systems with a rated frequency of 50-60Hz and a rated voltage of 35kV and below, for energy metering, voltage monitoring, and relay protection.

Service conditions for HVT60-220/220 35KV PT single-phase transformer

The equipment type is indoor;
The ambient temperature ranges from -30 ° C to+50 ° C;
Altitude: �� 1000m;
Temperature: Relative humidity: 80%;
Technical data:
Rated voltage ratio (V): 220/220V
Accuracy level: 1% (0.5%)
Rated output (VA): 60VA
Rated insulation level (kV): 35/80/200KV (meets the national standard for 35KV transformers)

Installation, use, maintenance and storage of HVT60-220/220 35KV PT single-phase transformer

1. Pre installation inspection
The inspection items generally include: whether the product model and specifications are consistent with the purchase contract; 1.2 Whether the random files are complete;
Whether the appearance of the product is damaged during transportation; Electrical performance test
a. Measurement of inter group and ground insulation resistance; b. Short time power frequency withstand voltage test of winding;
c. Short time power frequency withstand voltage test of winding to ground; e. Discharge measurement; f. Error testing;
Installation and use: The installation base should be kept flat, and electrical spacing should be ensured between phases. The base should be fastened to the product installation base plate with fasteners and should not be loose; The wiring between the primary and secondary output terminals must be firm and reliable, and the secondary output terminal must not be short circuited and reliably grounded; To ensure reliable operation, the installation base plate must be reliably grounded; The product can be put into normal operation after being inspected, accepted and installed by the user, and meeting the conditions for power supply or distribution handover.
3. Maintenance: Due to the simple structure of the product, regular maintenance is required during use. Dust on the surface of the equipment should only be removed during regular maintenance; And conduct preventive trials; Such as insulation resistance measurement, partial discharge measurement, and error performance testing.
4. Storage: The storage conditions of the product should meet the requirements of Article 2.
Under the condition that the user complies with the storage, installation, and use rules, within 12 days from the date of installation and use, but only within 18 months from the date of shipment from the manufacturer, if the product is damaged or cannot function properly due to poor manufacturing quality, the manufacturer shall replace or repair the product or parts for the user free of charge.

[High-V single-phase transformer]DC10-10/10-0.23 High voltage single-phase transformer

2026-6-20 13:03:31

DC10-10/10-0.23 high voltage single-phase transformer is specially designed for supporting central cabinets and high voltage switchgear. Adopting a special structure, the external dimensions are optimized while meeting the performance parameters of the standard

The DC10-10/10-0.23 high-voltage single-phase transformer fully meets the installation requirements of central cabinets and high-voltage switchgear, and is currently the most ideal matching transformer for central cabinets and high-voltage switchgear. 2. Performance characteristics: a. Safe, fireproof, pollution-free, can operate directly in the load center. b. Adopting German HTT technology, it has high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability. c. Small size, light weight, less space occupation, easy installation. d. Low loss, low noise, maintenance free, obvious energy-saving effect. e. Moisture proof, mildew proof, salt spray proof, good heat dissipation, suitable for high altitude, high humidity and harsh environment operation.

1. Product model: DC10-10/10-0.23
2. Rated capacity: 10KVA
3. Rated voltage and high voltage tap range: 10KV
4. Number of phases: 2 phases
5. Rated frequency: 50HZ, 60HZ
6. Connection group label: Iio
7. Impedance low voltage: 4%

[High-V single-phase transformer]DC-1/20KV single-phase power transformer

2026-6-20 13:03:23

DC-1/20KV single-phase power transformer

[High-V single-phase transformer]DC-2/20KV single-phase power transformer

2026-6-20 13:03:15

DC-2/20KV single-phase power transformer

[High-V single-phase transformer]DC-4/10KV single-phase power transformer

2026-6-20 13:03:06

DC-4/10KV single-phase power transformer

[High-V single-phase transformer]DC-3/15KV single-phase power transformer

2026-6-20 13:02:58

DC-3/15KV single-phase power transformer

[High-V single-phase transformer]DC-2/15KV single-phase power transformer

2026-6-20 13:02:49

DC-2/15KV single-phase power transformer

[High-V single-phase transformer]DC-3/10KV series single-phase power transformer

2026-6-20 13:02:41

DC-3/10KV series single-phase power transformer

[High-V single-phase transformer]DC-2/10KV series single-phase power transformer

2026-6-20 13:02:32

DC-2/10KV series single-phase power transformer

[High-V single-phase transformer]DC2-6/0.22 single-phase transformer

2026-6-20 13:02:24

DC2-6/0.22 single-phase transformer

[High-V single-phase transformer]DC-1/10KV single-phase voltage transformer (power transformer)

2026-6-20 13:02:15

DC-1/10KV single-phase voltage transformer (power transformer)

[High-V single-phase transformer]DC-5/10KV single-phase power transformer

2026-6-20 13:02:07

DC-5/10KV single-phase power transformer

[High-V single-phase transformer]DC-1/15KV single-phase power transformer

2026-6-20 13:01:58

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DC-1/15KV single-phase power transformer

[High-V single-phase transformer]DC-3,5/10G series high-voltage single-phase power transformer

2026-6-20 13:01:50

model Type	rated voltage ratio Rated voltage ratio (V)	220V (380/�� 3) winding Rated capacity Rated capability of winding 220V ��380/��3�� ��VA��	100V winding Rated capacity Rated load of winding 100V��VA��	100/��3V Rated load of winding capacity 100��3V ��VA��	Generally used wiring method Connection of Normal
model Type	rated voltage ratio Rated voltage ratio (V)			100/��3V Rated load of winding capacity 100��3V ��VA��	Generally used wiring method Connection of Normal
DC-3/10 DC-3/10G	10000/220	three thousand			Refer to Figures 1 and 2 ��fig 1,2��
	10000/220/100	three thousand	fifty		Refer to Figures 3 and 4 ��fig 3,4��
	10000/380/��3/100/��3	3000 per phase ��per phase 3000��		50 per phase ��per phase 50��	See Figure 7 ��fig 7��
	10000/��3/380/��3				See Figure 5 ��fig 5��
	10000/��3380/ ��3/100/��3			50 per phase ��per phase 50��	See Figure 6 ��fig 6��
DC-5/10	10000/220	five thousand			See Figure 1,2 (fig 1,2)
	10000/220/100	five thousand	fifty		See Figure 3,4 (fig 3,4)
	10000/380/��3/100/��3	5000 per phase ��per phase 5000��		50 per phase ��per phase 50��	See Figure 7 ��fig 7��
	10000/��3/380/��3				See Figure 5 ��fig 5��
	10000/��3/380/ ��3/100/��3			50 per phase ��per phase 50��	See Figure 6 ��fig 6��

DC-3,5/10 (G) series high-voltage single-phase transformer

[High-V single-phase transformer]DC-3/20KV series high-voltage single-phase power transformer

2026-6-20 13:01:41

DC-3/20 series high-voltage single-phase transformer

[Electricity metering box]JLSZY-10 Outdoor High Voltage Metering Box

2026-6-20 12:00:07

JLSZY-10 Outdoor High Voltage Metering Box

[Electricity metering box]JLS9 type oil immersed high-pressure metering box

2026-6-20 11:59:59

JLS9 oil immersed high-pressure metering box

[Electricity metering box]JLS4-6,10 series high-voltage metering box

2026-6-20 11:59:50

JLS4-6, 10 series high-voltage metering box

[Electricity metering box]JLSZW-35 High voltage metering box

2026-6-20 11:59:42

JLSZW-35 High Voltage Metering Box

[Electricity metering box]JLSG-6 Type Dry Outdoor High Voltage Metering Box

2026-6-20 11:59:33

JLSG-6 Dry Outdoor High Voltage Metering Box

[Electricity metering box]JLSZYo-35W Outdoor high-voltage electric energy metering box

2026-6-20 11:59:24

JLSZYo-35W Outdoor High Voltage Electric Energy Metering Box

[Electricity metering box]JSLG4-6,10 Outdoor high-voltage electric energy metering box

2026-6-20 11:59:16

This type of three-phase outdoor dry-type high-voltage energy metering box (combined transformer) is suitable for measuring electrical energy on lines with a frequency of 50Hz three-phase AC, rated voltages of 6kV and 10kV. It is an electrical equipment used to directly measure active and reactive electrical energy in high-voltage lines. It plays an important role in preventing electricity theft, saving energy, and strengthening power supply management. All technical indicators comply with the requirements of GB17201, GB1208, and GB1207 standards. This product can replace oil immersed power metering boxes

JSLG4-6, 10. Structural characteristics of outdoor high-voltage electric energy metering box:
This product consists of two main parts: a combination transformer and an electric meter box.
The combination transformer consists of two single-phase voltage transformers (PT) and two current transformers (CT), both of which are electromagnetic. The two PTs are connected by V/V to form a three-phase measuring device, and the primary windings of the two CTs are connected in series with A and C, respectively. The side of the box is welded with grounding bolts.
The electric meter box is connected to the secondary winding output of the combined transformer, and the electric meter box is equipped with one three-phase three wire active meter and one reactive meter.

JSLG4-6, 10 Technical parameters of outdoor high-voltage electric energy metering box:
Accuracy level and corresponding secondary load:
PT: 0.2 grade/15VA 0.5 grade/20VAC: 0.2S grade/10VA 0.2 grade/10VA 0.5 grade/10VA 0.5 grade/10VA;
Rated current ratio: 5-300/5 (A);
Insulation level: 6kV is 7.2/30/60, 10kV is 12/42/75;
Pollution level: Level IV;
Load power factor COS ��=0.8 (lag);
Rated voltage ratio: 10kV is 10/0.1 (kV), 6kV is 6/0.1 (kV).

JSLG4-6, 10 Outdoor High Voltage Energy Metering Boxes

[Electricity metering box]JLSZW8-10 High voltage metering box

2026-6-20 11:59:08

JLSZW8-10 High Voltage Metering Box

[Electricity metering box]JLS3-6 series high-voltage power metering box

2026-6-20 11:58:59

JLS3-6 series high-voltage power metering box

[Electricity metering box]JLS3-10 series high-voltage power metering box

2026-6-20 11:58:51

JLS3-10 series high-voltage power metering box

[Electricity metering box]JLSQ-3,6,10 series three-phase energy metering box

2026-6-20 11:58:43

JLSQ-3, The 6-10 three-phase energy metering box is suitable for measuring active and reactive energy in outdoor 3, 6, 10KV, 50HZ AC three-phase power systems, and its product performance complies with GB17201-1997.

Terms of Use
1. Environmental temperature: Maximum temperature:+40 �� Daily average temperature cannot exceed:+30 �� Minimum temperature: -30 ��
2. Altitude: not exceeding 1000 meters
3. Atmospheric conditions: no severe corrosive gases, Class II polluted areas
4. Seismic fortification intensity: 8 degrees
5. Wind speed: less than 35m/s. 6. Installation location: outdoors

JLSQ-3, Main specifications and technical parameters of the 6,10 series three-phase energy metering box
This product complies with the GB17201-1997 "Combination Transformer" standard, and the main specifications and technical parameters are as follows:
1. Rated frequency: 50HZ
2. Main specifications: 5600/5
3. Rated primary voltage: 3, 6, 10KV
4. Rated secondary voltage: 100V
5. Rated capacity of current transformer: 10-15VA (COS ��=0.8 hysteresis)
6. Rated capacity of voltage transformer: 15-20VA (COS ��=0.8 hysteresis)
7. Accuracy level: 0.1 level, 0.2 level, 0.2S level
8. Rated insulation level: 12/42/75KV
9. The rated short-time thermoelectric current multiple and dynamic stable current multiple are 90 times and 225 times, respectively.
10. Rated operating pressure of sulfur hexafluoride gas: 0.4Mpa (20 ��), minimum operating pressure of sulfur hexafluoride gas: 0.35Mpa (20 ��)

[Electricity metering box]JLSZK-12W Prepaid High Voltage Metering Box

2026-6-20 11:58:33

JLSZK-12W Prepaid High Voltage Metering Box

[Electricity metering box]LFZS-0.66 type fully enclosed transformer metering device

2026-6-20 11:58:25

1�� Product Introduction
The LFZS-0.66 fully enclosed transformer measuring device is a new type of fully enclosed measuring device specifically designed for measuring the low voltage end of 10kV power transformers installed indoors and outdoors.
The primary side of the internal transformer of the device is a compound turn type, and the secondary uses a super microcrystalline alloy iron core. It adopts epoxy resin fully cast insulation, and the three-phase current transformer is cast in one go, which has the characteristics of small volume and strong overall sealing.
This device is directly installed on the low-voltage output terminal of the transformer, using tempered glass and a casting body to be installed in a closed manner, that is, the output terminal is completely closed, and the secondary wiring can be directly observed from the outside. Has good anti-theft performance.

2�� Technical parameters of LFZS-0.66 fully enclosed transformer metering device
Reference standards
GB1208-2006 "Current Transformers"
IEC69944-1:2003 "Transformers Part 1: Current Transformers"
JB/T5356-2002 "Guidelines for Testing Current Transformers"
Electrical performance
Rated voltage: 0.5 kV
Maximum voltage of equipment: 0.66 kV
Power frequency withstand voltage: 3 kV, 60 s
Rated frequency: 50 Hz
Technical data
Rated primary current: 50-800 A
Rated secondary current: 5 or 1 A
Accuracy level of transformer: 0.5S or 0.2S level
Rated secondary output: 10VA or 10-3.75VA
environmental conditions
Usage environment: indoor or outdoor
Environmental temperature: -25~50 ��
Rated altitude: �� 1000 meters

LFZS-0.66 fully enclosed transformer metering device

[Electricity metering box]LMZS-0.66 type fully enclosed transformer metering device

2026-6-20 11:58:17

The LMZS-0.66 fully enclosed transformer measuring device is a new type of fully enclosed measuring device specifically designed for measuring the low voltage end of 10kV power transformers installed indoors and outdoors.
The internal transformer of the device uses a super microcrystalline alloy iron core, a single turn through core busbar structure, an SMC pressure formed shell, and epoxy resin fully cast insulation. The three-phase current transformer is cast in one go, which has the characteristics of small volume, high accuracy level, and strong overall sealing.
This device is directly installed on the low-voltage output terminal of the transformer, using tempered glass and a casting body to be installed in a closed manner, that is, the output terminal is completely closed, and the secondary wiring can be directly observed from the outside. Has good anti-theft performance.

Technical parameters of LMZS-0.66 fully enclosed transformer metering device

Reference standards
GB1208-2006 "Current Transformers"
IEC69944-1:2003 "Transformers Part 1: Current Transformers"
JB/T5356-2002 "Guidelines for Testing Current Transformers"
Electrical performance
Rated voltage: 0.5 kV
Maximum voltage of equipment: 0.66 kV
Power frequency withstand voltage: 3 kV, 60 s
Rated frequency: 50 Hz
Technical data
Rated primary current: 100-600 A
Rated secondary current: 5 or 1 A
Accuracy level of transformer: 0.5S or 0.2S level
Rated secondary output: 10VA or 10-3.75VA
environmental conditions
Usage environment: indoor or outdoor
Environmental temperature: -25~50 ��
Rated altitude: �� 1000 meters

LMZS-0.66 fully enclosed transformer metering device

[Electricity metering box]JLSJWS-35 Three phase four wire power metering box

2026-6-20 11:58:08

JLSJWS-35 three-phase four wire power metering box

[Electricity metering box]JLS3-3 series high-voltage power metering box

2026-6-20 11:58:00

JLS3-3 series high-voltage power metering box

[Electricity metering box]JLSZ2-10,6,3 series dry metering box (barrel type)

2026-6-20 11:57:51

JLSZ2-10, The 6,3 series dry-type metering box (bucket type) (combination transformer) is suitable for measuring electrical energy on 50HZ three-phase AC power grids with rated voltages of 6KV, 10KV, and 35KV. It is installed on the high voltage side of the power supply transformer and contains three-phase active and reactive energy meters inside the instrument box. It is an electrical equipment used to directly measure active and reactive energy in high-voltage lines. It plays a major role in preventing electricity theft, saving energy, and strengthening power supply management. All technical indicators fully comply with the national standards GB17201-1997, GB1208-1997, GB1207-1997, and enterprise Q/YCD02-2000. It has obtained the manufacturing license (03820397) for measuring instruments from the National Technical Supervision Bureau. The product has been inspected and qualified by the National Transformer Supervision and Inspection Center, and has been approved by the National Economic and Trade Commission to be included in the third batch of recommended products for urban and rural power grid construction and renovation in China.

JLSZ2-10, 6,3 series dry metering box (barrel type) can replace oil immersed power metering box

2�� Product model and meaning

3�� Structural features

JLSZ2-10, The 6,3 series dry metering box (barrel type) consists of two parts: a combination transformer and an instrument box
The combination transformer consists of two single-phase voltage transformers (PT) connected together and two current transformers (CT). Both PT and CT are electromagnetic, and the two PT windings are connected by V/V to form a three-phase measuring device. The primary windings of the two CTs are connected in series with the power grid A and C, respectively. The side of the box is welded with grounding screws.
The instrument box is connected to the secondary winding output of the combination transformer, and there is one three-phase active meter and one reactive meter installed inside the instrument box. The numbers can be clearly read from inside the box.

4�� Main technical parameters
1. Rated voltage: 35KV10KV6KV
2. Accuracy level: 0.5 and 0.2 levels, 0.5S and 0.2S levels
3. Rated transformation ratio: Voltage ratio: 35000/100V, 10000/100V, 6000/100V
Current ratio: A current of 2.5, 5, 7.5, 10, 15, 20, 30, 40, 50, 75, 100, etc.
4. Dual current ratio specification: The secondary current of the dual ratio current has a specified current ratio of 1S1, 1S2, 1S3, 21S1, 21S2, 21S3, where S1 and S2 are small current ratios and S1 and S3 are large current ratios. The current ratio connection should be selected according to the maximum capacity of the corresponding transformer
5. Rated capacity:
6KV0.2, 0.2S voltage section: 2 × 20VA current section: 2 × 10VA 0.5 voltage section: 2 × 25VA current section: 2 × 10VA10KV0.2, 0.2S, 0.5 voltage section: 2 × 25VA current section: 2 × 10VA35KV0.2, 0.2S, 0.5 voltage section: 2 × 50VA current section: 2 × 10VA

6. Voltage Transformer Error Limit Table:

7. Error Limit Table for Current Transformers:

8. Error limits for special current transformers:

9. Temperature rise limit of transformer:

5�� Wiring schematic diagram

6�� Usage conditions
This product is intended for use within the ambient temperature range of -30 ° C to+40 ° C and at altitudes below 2500 meters. The air temperature should not exceed 85%. The installation site should have no severe vibration or turbulence, and there should be no highly corrosive gases. It is not suitable for installation in flammable and explosive places.

7�� Inspection and maintenance before use

1. Measure the insulation resistance of the winding and compare it with the factory value.
2. Check whether the wiring of the secondary circuit is correct, and whether the screws and pressure plate positions of the junction box are normal.
3. Check if the grounding of the casing is good and if the lightning protection measures have been compromised.
4. When connecting a line, it should be consistent with the phase sequence of the power grid, and the incoming and outgoing wiring of P1 and P2 must be correct.
5. Voltage transformers are not allowed to have short circuits in the secondary, and current transformers are not allowed to have open circuits in the secondary. Voltage transformers, current transformer secondary, and box casings must be reliably grounded to ensure the safety of instruments and personnel.

8�� Exterior installation dimensions

9�� Ordering Notice:
When placing an order, the user should provide the following information to the manufacturer:
1. Rated primary voltage ratio and current ratio;
2. Accuracy level;
3. Usage conditions;
4. Types, quantities, and accuracy levels of distribution meters.

[Electricity metering box]JLSG-10 series dry metering box (barrel type)

2026-6-20 11:57:43

JLSG-10 series dry metering box

JLSG-10 series dry metering box (barrel type)

[Electricity metering box]JLSZ1-10 Dry type electric energy metering box

2026-6-20 11:57:35

The JLSZ1-10 electric energy metering box is suitable for measuring active and reactive energy in outdoor AC circuits with a rated voltage of 10kV and a rated frequency of 50Hz.

[Electricity metering box]JLS-10 Type Three phase Electric Energy Metering Box

2026-6-20 11:57:26

The JLS-10 combined electric energy metering box is a three-phase AC outdoor power equipment widely used in power plants, substations, and industrial and mining enterprises for measuring electric energy in transmission lines with a rated frequency of 50Hz and 10kV.

JLS-10 three-phase electric energy metering box

[Electricity metering box]JLS-35 Type Three phase Electric Energy Metering Box

2026-6-20 11:57:18

The JLS-35 combined electric energy metering box is a three-phase AC outdoor power equipment widely used in power plants, substations, and industrial and mining enterprises for measuring electric energy in transmission lines with a rated frequency of 50Hz and 35kV.

JLS-35 three-phase electric energy metering box

[Electricity metering box]SF6 Gas Insulated Three Phase Energy Metering Box

2026-6-20 11:57:10

The JLSQ-35 SF6 gas insulated energy metering box is suitable for outdoor AC three-phase power systems with a rated voltage of 35kV and a rated frequency of 50Hz
Measurement of active and reactive electrical energy. Suitable for outdoor substations in rural areas, as well as small substations and distribution stations in industrial enterprises.

The JLSQ-35 SF6 gas insulated three-phase energy metering box consists of two main parts: a combination transformer and an instrument box. The combination transformer consists of two current transformers and two voltage transformers.

The product complies with the provisions of GB1207-1997 "Voltage Transformers", GB1208-1997 "Current Transformers", and GB17201-1997 "Combination Transformers".
Can meet the oil-free requirements of power plants.
High measurement accuracy, up to 0.1 or 0.2S level.
Reliable performance, 10 years of maintenance free, anti electricity theft.

JLSQ-35 SF6 gas insulated three-phase electric energy metering box

[Electricity metering box]XJ-12 outdoor dry-type high-voltage electric energy metering box

2026-6-20 11:57:01

The XJ-12 high-voltage electric energy metering box (outdoor, dry-type) is equivalent to the LJSWH-6, 10 kV metering box and has been improved to a high-voltage dry-type. It is a supporting product for urban and rural power grid renovation. Small size, light weight, high protection level, and reasonable structure, it is recommended by the joint design team for high-voltage electric energy metering.

Rated voltage: 6 kV, 10 kV;
Voltage capacity: 20-30VA;
Rated current: 5-600A;
Current capacity: 10-15 VA;
Rated frequency: 50Hz, 60Hz;
Rated voltage of metering circuit: 100V;
Rated current of metering circuit: 5A, 1A;
Measurement accuracy: 0.2 level, 0.2S level

XJ-12 High Voltage Electric Energy Metering Box (Outdoor, Dry Type)

[Electricity metering box]JLS-12W outdoor high-voltage power metering box

2026-6-20 11:56:53

Main technical parameters of JLS-12W outdoor high-voltage power metering box

1. Rated voltage:
2. Rated current: Primary 5-600 (A)
Secondary 5 (A)
3. Accuracy level: 0.5 or 0.2
4. Secondary load: voltage 25 (VA)
Current 10 (VA)
4. Power frequency withstand voltage: 42 (KV)/minute
The JLS 6/12W three-phase oil immersed outdoor high-voltage power metering box is used for measuring the active and reactive electricity in the power supply area on a three-phase AC 50Hz network with a voltage of 6 or 10 dry volts. The primary voltage of the voltage transformer in this product is 6 or 10 dry volts, and the secondary voltage is 100 volts. There are two types of current ratios for current transformers: single ratio and double ratio. And it can be applied to dual measurement.
Single variable ratio specifications include: 5/5 to 600/5, etc
Dual ratio specifications include: 5-10/5-100-600/5, etc
Used within the rated capacity range of 25% to 100%, with accuracy levels of 0.5 and 0.2. This product uses single-phase components and forms a three-phase device through V/V wiring. Instruments are installed on the outside of the box

Box, for observing the measurement situation.

The JLS-12W outdoor high-voltage power metering box has a small volume, light weight, beautiful appearance, accurate measurement, easy maintenance and management, complete specifications, and can prevent electricity theft and leakage. It is an ideal equipment for energy metering.

[Electricity metering box]JLS-6W outdoor high-voltage power metering box

2026-6-20 11:56:43

Main technical parameters of JLS-6W outdoor high-voltage power metering box

1. Rated voltage:
2. Rated current: Primary 5-600 (A)
Secondary 5 (A)
3. Accuracy level: 0.5 or 0.2
4. Secondary load: voltage 25 (VA)
Current 10 (VA)
4. Power frequency withstand voltage: 42 (KV)/minute
The JLS 6/12W three-phase oil immersed outdoor high-voltage power metering box is used for measuring the active and reactive electricity in the power supply area on a three-phase AC 50Hz network with a voltage of 6 or 10 dry volts. The primary voltage of the voltage transformer in this product is 6 or 10 dry volts, and the secondary voltage is 100 volts. There are two types of current ratios for current transformers: single ratio and double ratio. And it can be applied to dual measurement.
Single variable ratio specifications include: 5/5 to 600/5, etc
Dual ratio specifications include: 5-10/5-100-600/5, etc
Used within the rated capacity range of 25% to 100%, with accuracy levels of 0.5 and 0.2. This product uses single-phase components and forms a three-phase device through V/V wiring. An instrument box is installed on the outside of the box for observing the measurement situation.

The JLS-6W outdoor high-voltage power metering box has a small volume, light weight, beautiful appearance, accurate measurement, easy maintenance and management, complete specifications, and can prevent electricity theft and leakage. It is an ideal equipment for energy metering.

[Electricity metering box]JLS-40.5W High voltage power metering box

2026-6-20 11:56:35

The JLS-40.5 three-phase oil immersed outdoor high-voltage power metering box is composed of two voltage transformers and two current transformers combined and installed in one oil tank. Suitable for measuring active and reactive energy on a three-phase AC network with a rated voltage of 40.5KV and a rated frequency of 50Hz.

Main technical parameters of JLS-40.5W high-voltage power metering box

1. Rated primary voltage: 35000 (V)
2. Rated secondary voltage: 100 (V)
3. Rated primary current:
a�� Single variable ratio specifications include: 5, 10, 15, 20, 25, 30, 40

50, 60, 75, 100, 150, 200
b�� Dual ratio specifications include: 5-10, 10-15, 15-25, 15-30, 20-40, 25-50, 50-70, 50-100, 75-150, 100-200
4. Rated secondary current: 5 (A)
5. Rated output and accuracy level: The current transformer is at 10VA 0.2S level or 0.2S level, and the voltage transformer is at 25VA 0.2 level
6. Power frequency withstand voltage: The primary to secondary and ground short-time power frequency withstand voltage is 95KV, and the secondary to ground short-time power frequency withstand voltage is 3KV
7. Rated short-time thermal current: 90 times the rated primary current
8. Rated dynamic stability current: 2.5 times the rated short-time thermal current

Error and temperature rise of voltage and current transformers inside the measuring box
The JLS-40.5W high-voltage power metering box meets the requirements of GB1207-97 and GB1208-97

Voltage Transformer Error Limit

accuracy level	Voltage error ±% (At the following rated voltage percentages)			Phase difference ±% (At the following rated voltage percentages)
accuracy level	eighty	one hundred	one hundred and twenty	eighty	one hundred	one hundred and twenty
zero point five	zero point five	zero point five	zero point five	twenty	twenty	twenty
zero point two	zero point five	zero point two	zero point two	ten	ten	ten

Error limit of current transformer

accuracy level	Voltage error ±% (At the following rated voltage percentages)				Phase difference ±% (At the following rated voltage percentages)
accuracy level	five	twenty	one hundred	one hundred and twenty	five	twenty	one hundred	one hundred and twenty
zero point five	one point five	zero point seven five	zero point five	zero point five	ninety	forty-five	thirty	thirty
zero point two	zero point seven five	zero point three five	zero point two	zero point two	thirty	fifteen	ten	ten

JLS-40.5W high-voltage power metering box temperature rise limit (referring to the temperature rise at maximum capacity)

Mutual inductance location	Temperature rise 0C	measurement method
coil	fifty-five	Resistance method
Coil head or connection sign	fifty	Thermometer method
oil noodles	fifty	Thermometer method

JLS-40.5W high-voltage power metering box

[Electricity metering box]JLSZW6-10 High voltage outdoor dry-type power metering box

2026-6-20 11:56:27

The JLSZW6-10 three-phase outdoor epoxy resin cast combination transformer (commonly known as the power metering box) is composed of two independent single-phase voltage transformers and two independent single-phase current transformers assembled on a single chassis. Both current and voltage transformers are made of imported outdoor epoxy resin poured in one go, with high mechanical strength and the ability to withstand various tensile and vibration forces during operation. This product has high precision, low temperature rise, good fire prevention, explosion prevention, electricity theft prevention, pollution resistance, and dynamic and thermal stability performance. This product is suitable for measuring electrical energy in three-phase AC lines with a rated frequency of 50Hz and a rated voltage of 10kV

Main technical parameters of JLSZW6-10 high-voltage outdoor dry-type power metering box
voltage transformer

Rated voltage ratio (KV)	accuracy level	Rated output (VA)	Maximum output (VA)	Rated insulation level (KV)
10/0.1	0.2 or 0.5 level	15 or 25	three hundred	12/45/75

current transformer

Rated current ratio (A)	accuracy level	Rated output (VA)	Short term thermal current (1st)	Dynamic stable current (KV)	Rated insulation level (KV)
5��300/5	0.2S or 0.2 level	seven point five	100l1n	2.50lth	12/42/75

Outline dimension drawing of JLSZW6-10 high-voltage outdoor dry-type power metering box

JLSZW6-10 high-voltage outdoor dry-type power metering box

[Electricity metering box]JLS series high-voltage power metering box

2026-6-20 11:56:18

Technical parameters of JLS series high-voltage power metering box

1. The product performance complies with GB17201-1997;
2. Rated voltage: 6kV, 10kV, 35kV
3. Accuracy levels: 0.5 and 0.2, 0.5S and 0.2S;
4. Rated transformation ratio: voltage ratio 6000/100 10000/100 35000/100 current ratio 5-300/5 (high current transformation ratio can be set)

Technical parameters of combination transformer

wiring diagram

Outline drawing of JLS series high-voltage power metering box and meter box

Current ratio (A)	Accuracy level and rated output				Weight (kg)	One second thermal stability Current (KA)	Dynamic stability Current (KA)
	0.2s	zero point five	zero point two	zero point five
5-400/5	ten	ten	10(15)	10(20)		60 l1n	150 l1n
Voltage ratio (V)	Accuracy level and rated output (VA) COS ��=0.8					Maximum output (VA)
	zero point two	zero point five		one
6000/100 10000/100	twenty	thirty		fifty	ninety-five	three hundred
35000/100	thirty	fifty		eighty	four hundred	four hundred

JLS series high-voltage power metering box

[Electricity metering box]JLS-1 series programmable power metering box

2026-6-20 11:56:10

Main performance of JLS-1 series programmable power metering box

1. Rated voltage: divided into 3 × 0.5kV, 3 × 0.66kV, and 3 × 1.14kV
2. Rated transformation ratio: 1~600/5A
3. Rated capacity: PT component 5VA CT 5VA
4. Accuracy level: 0.5 level, 0.2 level, 0.2S level, 0.5S level

JLS-1 series programmable power metering box

[500KV High Voltage Transformer]LVQBT-500W2 high-voltage current transformer

2026-6-20 11:51:38

Technical parameters of LVQBT-500W2 high-voltage current transformer

Dimensions of LVQBT-500W2 High Voltage Current Transformer

LVQBT-500W2 High Voltage Current Transformer

[500KV High Voltage Transformer]TYD500 series high-voltage voltage transformer

2026-6-20 11:51:34

Technical parameters of TYD500 series high-voltage voltage transformer

TYD500 series high-voltage voltage transformer appearance and installation dimensions

TYD500 series high-voltage voltage transformer

[500KV High Voltage Transformer]LBT-500W2(LBT-550W2) series high-voltage current transformer

2026-6-20 11:51:15

LBT-500W2 (LBT-550W2) series high-voltage current transformer

[500KV High Voltage Transformer]TYD330 series high-voltage voltage transformer

2026-6-20 11:51:09

The TYD330 series high-voltage voltage transformer is used in AC power systems, connected between the line and ground, to provide single-phase low-voltage power for measurement, protection, and control devices. The product complies with the GB4703 standard.

[500KV High Voltage Transformer]LVQB(T)-500W2 series high-voltage current transformer

2026-6-20 11:51:07

LVQB (T) -500W2 series high-voltage current transformer

[220KV current transformer]LB7-220(W1, W2) High voltage current transformer

2026-6-20 11:48:15

The LB7-220 (W1, W2) current transformer has the following characteristics:
1. The secondary iron core adopts high-quality imported silicon steel sheets with stable performance.
2. The secondary combination forms are diverse, which can fully meet the measurement and protection needs of ordinary lines, connecting lines, and user lines in the power system.
3. The product adopts a fully sealed structure, effectively preventing transformer oil and body from getting damp.
4. Equipped with a multi oil valve. The functions of taking oil samples, draining oil, and injecting oil are integrated into one.
5. The product has low dielectric loss, small partial discharge, and reliable main insulation.
6. Implement the standard GB1208-1997.

Technical parameters of LB7-220 (W1, W2) high-voltage current transformer

model

Rated current ratio (A)

Secondary combination

accuracy level

rated output(VA)

Accurate limit coefficient

frequency

(m)

altitude

(Hz)

Ceramic sleeve creepage distance(mm)

Rated short-time thermal current (kA)

Rated dynamic stability current (kA)

Oil weight/Total weight (kg)

Full turn

tap

LB7-220

LB7-220W1

LB7-220W2

2×600/5

(Tap 2 × 300/5)

5P1/5P2/

5P1/5P1/

0.2(0.2)

5P1

fifty

twenty

fifty

one thousand and seven hundred

four thousand and one hundred

W1:

five thousand and five hundred

W2:

six thousand and three hundred

21-42

(5S)

55-110

365/1180

W1:

365/1300

W2:

365/1400

5P2

fifty

25/13

zero point two

fifty

LB7-220

LB7-220W1

LB7-220W2

2×600/5

(Tap 2 × 300/5)

5P1/5P2/

5P1/5P1/

0.2(0.5)

5P1

fifty

twenty

fifty

one thousand and seven hundred

four thousand and one hundred

W1:

five thousand and five hundred

W2:

six thousand and three hundred

21-42

(5S)

55-110

365/1180

W1:

365/1300

W2:

365/1400

5P2

fifty

25/13

zero point two

fifty

(0.5)

LB7-220

LB7-220W1

LB7-220W2

2×600/5

(Tap 2 × 300/5)

5P1/5P2/

5P1/5P1/

0.2(0.2)/

0.5(0.5)

5P1

fifty

twenty

fifty

one thousand and seven hundred

four thousand and one hundred

W1:

five thousand and five hundred

W2:

six thousand and three hundred

21-42

(5S)

55-110

365/1180

W1:

365/1300

W2:

365/1400

5P2

fifty

25/13

zero point two

fifty

zero point five

fifty

Ordering Instructions
1. Indicate the product model and voltage level;

LB7-220 (W1, W2) High Voltage Current Transformer

[220KV current transformer]LBT-220(GY, W2) high-voltage current transformer

2026-6-20 11:47:47

Technical parameters of LBT-220 (GY, W2) high-voltage current transformer

Overall dimensions

LBT-220 (GY, W2) High Voltage Current Transformer

[220KV current transformer]LCWB7-220(W1) High voltage current transformer

2026-6-20 11:47:01

Technical parameters of LCWB7-220 (W1) high-voltage current transformer

Dimensions of LCWB7-220 (W1) High Voltage Current Transformer

LCWB7-220 (W1) High Voltage Current Transformer

[220KV voltage transformer]JCC5-220220(W1)/(W2) Oil immersed voltage transformer

2026-6-20 11:46:34

JCC5-220220 (W1)/(W2) Oil immersed Voltage Transformer

[220KV voltage transformer]TYD220-220kV Capacitive Voltage Transformer

2026-6-20 11:46:33

The TYD220-220kV capacitive voltage transformer product consists of two parts: a capacitive voltage divider and an electromagnetic unit. The capacitive voltage divider consists of a ceramic sleeve, a capacitor core, a capacitor oil, and a metal expander, while the electromagnetic unit consists of an intermediate transformer, a compensating reactor, and a damper. This series of transformers adopts a speed saturation damping device, which has a fast transient response speed and can reliably dampen ferromagnetic resonance. The product has optimized the sealing structure and has good sealing performance.

1. The rated voltage is 220kV, the maximum voltage of the equipment is 252kV, and the rated frequency is 50Hz.
2. The rated power frequency withstand voltage is 395kV, and the rated lightning impulse withstand voltage is 950kV (full wave).
3. The rated voltage factor/time is 1.2 (continuous) and 1.5 (30s).
4. The accuracy level combination is 0.2/0.5 (3P)/3P, and the secondary load is 100/100/100VA.
5. The available electric capacities for users are: 0.0033H, 0.0035H, 0.004H, 0.005H, 0.0075H, 0.01H

TYD220-220kV Capacitive Voltage Transformer

[220KV voltage transformer]JDC5-220 High Voltage Voltage Transformer

2026-6-20 11:46:25

The JDC5-220 voltage transformer is a fully sealed series oil paper insulated single-phase three winding structure. The primary winding is divided into four groups, which are respectively mounted on the upper and lower columns of two frame type iron cores. The body of the winding is fixed on the base and immersed in the oil of the high-voltage porcelain box. The upper part of the porcelain box is equipped with an expander; The N terminal of the primary winding, the secondary winding, and the residual voltage winding are led out by a small porcelain sleeve on the base, which is equipped with an oil sample valve.

Main technical data of JDC5-220 high-voltage voltage transformer:

Rated voltage (KV)	Primary winding (AN)	220/��3
	Secondary winding (AN)	0.1/��3
	Remaining voltage winding (dadn)	zero point one
Phase number, frequency (Hz)		Single phase, 50
Accuracy level and rated output (VA) of secondary winding cos ��=0.8		zero point two	one hundred and fifty
		zero point five	three hundred
		one	five hundred
		3P	five hundred
Accuracy level and rated output (VA) of residual voltage winding		3P level, 300
Secondary winding limit output (VA)		two thousand
Rated insulation level (KV)		252/395/950
Partial discharge level (PC)		��10

JDC5-220 High Voltage Voltage Transformer

[220KV voltage transformer]JDCF-220(W2) High Voltage Voltage Transformer

2026-6-20 11:46:17

The JDCF-220 voltage transformer is a fully sealed series oil paper insulated single-phase four winding structure. The primary winding is divided into four groups, which are respectively mounted on the upper and lower columns of two frame type iron cores. The body of the winding is fixed on the base and immersed in the oil of the high-voltage porcelain box. The upper part of the porcelain box is equipped with an expander; The N terminal of the primary winding, the secondary winding, and the residual voltage winding are led out by a small porcelain sleeve on the base, which is equipped with an oil sample valve.

Main technical data of JDCF-220 (W2) high-voltage voltage transformer:

Rated voltage (KV)	Primary winding (AN)	220/��3
	Measure winding (1a1n)	0.1/��3
	Protection winding (2a2n)	0.1/��3
	Remaining voltage winding (dadn)	zero point one
Phase number, frequency (Hz)		Single phase, 50
Accuracy level and rated output (VA) of secondary winding cos ��=0.8	winding measurement	zero point two	one hundred and fifty
		zero point five	three hundred
	Protect the winding	3P	two hundred and fifty
		3P	four hundred
Accuracy level and rated output (VA) of residual voltage winding		3P level, 300
Secondary winding limit output (VA)		two thousand
Rated insulation level (KV)		252/395/950
Partial discharge level (PC)		��10

JDCF-220 (W2) High Voltage Voltage Transformer

[220KV voltage transformer]JDQXF-220(W2)SF6 Gas Insulated Voltage Transformer

2026-6-20 11:46:00

Introduction to JDQXF-220 (W2) SF6 Gas Insulated Voltage Transformer

High insulation level and good external insulation performance;
The composite insulation sleeve has good mechanical strength and anti pollution flashover performance;
Strong earthquake resistance ability;
Reasonable product design, no explosion hazard;
Good sealing performance, with an annual leakage rate of less than 0.5%;
No local release;
The product is capacitive and prevents the occurrence of ferromagnetic resonance phenomenon;
Low dielectric loss factor and strong weather resistance.

JDQXF-220 (W2) SF6 gas insulated voltage transformer

[220KV voltage transformer]JDQX3-252 series gas insulated electromagnetic voltage transformers

2026-6-20 11:45:51

Product model: JDQX3-252 series gas insulated electromagnetic voltage transformer

Product features: The JDQX3-252 series gas insulated electromagnetic voltage transformer is designed for use with 252KV single-phase metal enclosed composite electrical appliances and is the main component of metal enclosed composite electrical appliances. This product meets the national standards GB1208 and IEC185.

Technical parameters of JDQX3-252 series gas insulated electromagnetic voltage transformer:

Rated primary voltage: 220/�� 3KV
Rated frequency: 50-60Hz
Rated insulation level: 252/460/950KV
Partial discharge level:<5pC
Insulation medium: SF6
Rated gas pressure: 0.6Mpa
Minimum gas operating pressure: 0.5Mpa
At zero gauge pressure, the power frequency withstand voltage of the primary winding is 190KV for 5 minutes
Annual gas leakage rate:<0.5%
Gas moisture content: �� 150ppm
Accurate level combination:
Accurate level combination:

Winding category	Rated voltage ratio (KV)	Accurate level combination	Rated output capacity combination (VA)	Secondary winding thermal limit output (VA)
three-winding	110/��3��0.1/��3��0.1	0.2��3P	150��300	two thousand
three-winding	110/��3��0.1/��3��0.1	0.5��3P	300��300	two thousand
Four windings	110/��3��0.1/��3��0.1��3��0.1	0.2��3P��3P	100��150��300	two thousand
		0.5��3P��3P	150��150��300	two thousand
		0.2��0.2��3P	75��75��300	two thousand
		0.2��0.5��3P	120��150��300	two thousand
		0.5��0.5��3P	150��150��300	two thousand

JDQX3-252 series gas insulated electromagnetic voltage transformer

[220KV current transformer]LB9-220(W2) series high-voltage current transformer

2026-6-20 11:43:22

Technical parameters of LB9-220 (W2) series high-voltage current transformer

LB9-220 (W2) series high-voltage current transformer external dimensions

LB9-220 (W2) series high-voltage current transformer

[220KV current transformer]LVB-220W High Voltage Current Transformer

2026-6-20 11:43:04

LVB-220W High Voltage Current Transformer

		LVB-220W High Voltage Current Transformer
Rated voltage kV		two hundred and twenty
Rated insulation level kV		252/460/1050
Rated secondary current A		5 (or 1)
Rated primary current A		2 * 1250, 2 * 750, 2 * 1500
Level combination		B/B/B2/B2/0.2
Secondary performance (protection level)		2*1250/5	2*1250/1	2 * 750/5, 2 * 1500/5	2 * 750/1, 2 * 1500/1
Grade B	Full turn/tap vA	40/25��50/25��	30/20	50/30	30/20
	Accuracy Limit Factor (ALF)	5P20��5P15��	5P20	5P20	5P20
B2 level	Full turn/tap vA	60/30��50/25��	40/25	60/30	40/25
	Accuracy Limit Factor (ALF)	5P25��5P30��	5P25	5P30	5P30
Measurement level performance	Full turn/tap vA	60/30	40/20	60/30	40/20
	Instrument security factor (FS)	five	five	five	five
Short time thermal current kA/3s		2*750A��31.5-50�� Others: 40-63
Dynamic stability current kA		2*750A��80-125�� Others: 100-160
Product dielectric loss rate%		Not more than 0.5%, zero screen to ground not more than 0.7%
Partial discharge pC		Not greater than 10 (not greater than 5pC at 252kV or 220kV)
Creepage distance mm		5040, 6300
Oil weight/total weight kg		200/850��880��
Altitude m		Not exceeding 3000
Terminal withstand load once	horizontal direction	4000N
	Other directions	4000N

LVB-220W High Voltage Current Transformer

[220KV current transformer]LB-220KV High Voltage Current Transformer

2026-6-20 11:42:55

The LB-220KV high-voltage current transformer is an electromagnetic imitation oil tank with a ceramic sleeve structure. It consists of fuel tank, porcelain sleeve, oil storage tank, expander, body, primary outlet device, pressure release device, and secondary outlet box. The primary wire set is in the shape of a "racket" and adopts an oil paper capacitive insulation structure. The transformation of current ratio can be achieved through external series parallel switching using a primary output device, or by switching at the secondary output terminal; The secondary winding is wound around the annular iron core, fitted under the primary winding, and placed in the oil tank. The front of the fuel tank is equipped with a secondary outlet box, the back is a pressure relief device, and the bottom is equipped with a drain valve.

Main technical data of LB-220KV high-voltage current transformer:

Rated voltage (KV)	two hundred and twenty
Polarity, rated frequency (Hz)	Reduce, 50
Rated primary current (A)	300��600��750��800��1000��1250��1500��2000��2400��2500
Rated secondary current (A)	1��5
Accuracy level and combination	5P/5P/5P/5P/5P��0.5��/0.5��0.2��
Rated load (VA)	Protection level 60 (tap 40) Measurement level 50 (tap 30)
Rated insulation level (KV)	252/395/950 (plateau type: 252/460/1050)
Partial discharge level (PC)	��5PC
Instrument security factor	FS �� 10 or FS �� 5
Accurate limit coefficient	ALF��20

LB-220KV High Voltage Current Transformer

[220KV current transformer]LVQB-110/220 outdoor sulfur hexafluoride current transformer

2026-6-20 11:42:38

LVQB-110/220 Outdoor Sulfur Hexafluoride Current Transformer
Overview
LVQB-110 and LVQB-220 SF6 current transformers are electromagnetic current transformers developed and produced to meet the needs of the power market, using SF6 gas as the insulation medium. The products meet the requirements of GB1208-1997 and relevant IEC standards, and have passed the testing of the Electrical Equipment Quality Inspection and Testing Center of the Ministry of Electric Power Industry, as well as the inspection of the State Machinery Industry Bureau and the State Power Company
Technical appraisal. This current transformer plays a role in electrical protection and measurement in AC 50Hz, 110KV, and 220KV high-voltage transmission and transformation systems.

product structure
The overall structure of the product is inverted, mainly composed of three parts: shell, sleeve, and base. The shell is located at the top of the product, and both the primary and secondary windings are installed inside the shell. The primary winding is connected to the secondary winding
Passing through the middle of the group, they are insulated with SF6 gas. The shell is equipotential with the primary circuit and insulated from the base through a sleeve. The secondary winding is fixed inside the shell by insulating components, and its leads are connected to the secondary wiring terminals in the base through metal shielding tubes in the sleeve, for users to connect to measuring or protective loads. The base is equipped with adsorbents, secondary wiring boards, and SF6 pointer type density relays.

Terms of Use
Environmental temperature: -40 ��~+40 ��
Altitude: �� 3000m
Wind pressure: �� 700Pa
Seismic intensity: �� 8 degrees

Ordering Instructions
Please specify when placing an order:
Model and name of current transformer
rated current ratio
Number of required secondary coils, accuracy level, and rated output
External insulation type (silicone rubber insulation, porcelain insulation)
Required spare parts, accessories, and other special requirements
Product quantity and delivery time

Technical parameters of LVQB-220 current transformer

serial number	name	unit	data
one	Rated short-time power frequency withstand voltage (1-minute effective value)	KV	three hundred and ninety-five
two	Rated lightning impulse withstand voltage (full wave 1.2/50 �� s) (peak)	KV	nine hundred and fifty
three	Rated lightning impulse withstand voltage (cut-off 2-5 �� s) (peak value)	KV	one thousand and ninety-three
four	Partial discharge capacity	PC	��5
five	Rated pressure of SF6 gas (20 ��)	MPa	zero point four
six	SF6 gas replenishment pressure (20 ��)	MPa	zero point three five
seven	Creepage distance ratio		��25
eight	Annual SF6 gas leakage rate	mm/kv	��1%
nine	SF6 gas moisture content	V/V	�� 250 × 10-6 (factory control value)
nine	SF6 gas moisture content	V/V	�� 500 × 10-6 (allowable operating value)
ten	Weight of SF6 gas per unit/total weight per unit	kg	18/1200

serial number	Current ratio A	Rated once Current A	Rated secondary Current A	measurement level		protection level		Rated output VA		3S short-term heat Current kA	Rated dynamic stability Constant current kA
				accuracy level	Instrument security factor	accuracy level	Accurate limit coefficient	measurement level	protection level
one	2×300/5	three hundred	5 or 1	0.2 or 0.5 level	FS5 or FS10	5P level or 10P level	twenty	thirty	fifty	thirty-one point five	eighty
		six hundred								fifty	one hundred and twenty-five
two	2×400/5	four hundred								thirty-one point five	eighty
		eight hundred								fifty	one hundred and twenty-five
three	2×500/5	five hundred						forty		thirty-one point five	eighty
		one thousand								fifty	one hundred and twenty-five
four	2×600/5	six hundred								thirty-one point five	eighty
		one thousand and two hundred								fifty	one hundred and twenty-five
five	1500/5	one thousand and five hundred						fifty	sixty
six	2000/5	two thousand						sixty
seven	2500/5	two thousand and five hundred

Note: 1. Each product can come with six secondary coils; 2. When the user has special requirements, they can be resolved through negotiation.

Technical parameters of LVQB-110 current transformer

serial number	name	unit	data
one	Rated short-time power frequency withstand voltage (1-minute effective value)	kV	two hundred and thirty
two	Rated lightning impulse withstand voltage (peak) (full wave 1.2/50 �� s)	kV	five hundred and fifty
three	Rated lightning impulse withstand voltage (peak) (cut-off 2-5 �� s)	kV	six hundred and thirty-three
four	Rated short-time thermal current (effective value)	kA	55-87
five	Rated dynamic stability current (peak value)	kA	100-125
six	Partial discharge capacity	PC	��5
seven	Rated pressure of SF6 gas (20 ��)	MPa	zero point four
eight	SF6 gas replenishment pressure (20 ��)	MPa	zero point three five
nine	Minimum creepage distance	mm/kv	��25
ten	Annual SF6 gas leakage rate		��1%
eleven	SF6 gas moisture content	V/V	�� 250 × 10-6 (factory value)
eleven	SF6 gas moisture content	V/V	�� 500 × 10-6 (operating value)
twelve	Weight of SF6 gas per unit/total weight per unit	kg	7-500

serial number	current ratio A	Rated once Current A	Rated secondary Current A	measurement level		protection level		Rated output VA
				accuracy level	Instrument security factor	accuracy level	Accurate limit coefficient	measurement level	protection level
one	2×200/5	two hundred	5 or 1	Level 0.2 or Level 0.5	FS5 or FS10	5P level or 10P level	twenty	thirty	thirty
		four hundred
two	2×300/5	three hundred							forty
		six hundred
three	2×400/5	four hundred
		eight hundred
four	2×500/5	five hundred							fifty
		one thousand
five	2×600/5	six hundred
		one thousand and two hundred
six	750-1500/5	seven hundred and fifty						thirty	thirty
		one thousand and five hundred						fifty	fifty
seven	1000-2000/5	one thousand						thirty	thirty
		two thousand						fifty	fifty
Note: 1. Each product can come with 4 secondary coils; 2. When the user has special requirements, they can be resolved through negotiation.

Outline drawing of LVQB-110 SF6 current transformer product

Outline drawing of LVQB-220 SF6 current transformer product

[220KV current transformer]LVQB1-220W2(3),LVQB1-110W2(3) series current transformers

2026-6-20 11:42:30

LVQB1-220W2 (3), LVQB1-110W2 (3) series current transformers

[110KV voltage transformer]JDQHH-110 GIS 110kV single-phase voltage transformer

2026-6-20 11:38:23

The JDQHH-110 GIS 110kV single-phase voltage transformer is a GIS specific electromagnetic voltage transformer, which can be installed in three ways: forward, reverse, and horizontal.

[110KV voltage transformer]JSQHH-110 GIS 110kV three-phase voltage transformer

2026-6-20 11:37:58

The JSQHH-110 GIS 110kV three-phase voltage transformer can be installed in three ways: forward, reverse, and horizontal. This type of voltage transformer has a compact structure and is easy to install. The main function is to provide voltage measurement, energy metering, and relay protection for the power system, in accordance with the national standard GB/T20840.3-2013 Supplementary Technical Requirements for Electromagnetic Voltage Transformers and the international standard IEC 61869-3:2011 Supplementary Requirements for Electromagnetic Voltage Transformers.

[110KV voltage transformer]JDQXF-66W2 High Voltage Voltage Transformer

2026-6-20 11:36:50

Technical parameters of JDQXF-66W2 high-voltage voltage transformer

Outline drawing of JDQXF-66W2 high-voltage voltage transformer

JDQXF-66W2 High Voltage Voltage Transformer

[110KV voltage transformer]JDQX3-126 gas insulated electromagnetic voltage transformer

2026-6-20 11:36:47

JDQX3-126 gas insulated electromagnetic voltage transformer is designed to be used in conjunction with 72.5-126KV single-phase metal enclosed composite electrical appliances, and is the main component of metal enclosed composite electrical appliances. This product meets the national standards GB1208 and IEC185.

Technical parameters of JDQX3-126 gas insulated electromagnetic voltage transformer:
Rated primary voltage: 100/�� 3KV
Rated frequency: 50-60Hz
Rated insulation level: 126/230/550KV
Partial discharge level:<5pC
Insulation medium: SF6
Rated gas pressure: 0.4Mpa
Minimum gas operating pressure: 0.35Mpa
At zero gauge pressure, the power frequency withstand voltage of the primary winding is 110KV for 5 minutes
Annual gas leakage rate:<0.5%
Gas moisture content: �� 150ppm
Accurate level combination:
Accurate level combination:

Winding category	Rated voltage ratio (KV)	Accurate level combination	Rated output capacity combination (VA)	Secondary winding thermal limit output (VA)
three-winding	110/��3��0.1/��3��0.1	0.2��3P	150��300	two thousand
three-winding	110/��3��0.1/��3��0.1	0.5��3P	300��300	two thousand
Four windings	110/��3��0.1/��3��0.1��3��0.1	0.2��3P��3P	120��150��300	two thousand
		0.5��3P��3P	150��150��300	two thousand
		0.2��0.2��3P	75��75��300	two thousand
		0.2��0.5��3P	120��150��300	two thousand
		0.5��0.5��3P	150��150��300	two thousand

[110KV voltage transformer]JDC7-110W High Voltage Voltage Transformer

2026-6-20 11:36:33

JDC7-110W High Voltage Voltage Transformer

			JDC7-110W
Rated primary voltage kv			one hundred and ten
Rated secondary voltage kV		measurement level	100/3
		protection level	110/3
		Remaining voltage	one hundred
Rated output and accuracy		measurement level	75~100VA0.2 level 150VA0.5 level
		protection level	300VA3p level
		Remaining voltage	200VA3p level
Thermal limit load VA			two thousand
Rated voltage factor			1.6/30S
Power frequency withstand voltage kv	Primary winding to ground		two hundred
	One winding N terminal to ground		five
	Between secondary windings		two
Media loss rate%			<2
Partial discharge level pC			<10
Standard lightning voltage full wave impulse voltage kv			four hundred and eighty
Lightning carrier impulse voltage kV			five hundred and fifty
sealing performance			0.2MPa no leakage (Test before installing the expander)
Creepage distance mm			2240 2865 3150
Oil weight/total weight kg			140/550

Note: The secondary winding can be designed as two according to user needs, and the load and accuracy can be adjusted according to user needs.

JDC7-110W High Voltage Voltage Transformer

[110KV voltage transformer]JED(S)H Series SF6 Gas Insulated Electronic Voltage Transformers

2026-6-20 11:36:25

The JED (S) H series SF6 gas insulated electronic voltage transformer is the development direction of instrument transformers. Compared with conventional instrument transformers, electronic transformers have a simpler insulation structure, smaller volume, and lighter weight; No iron core, no ferromagnetic resonance and other issues; Good anti electromagnetic interference performance; Large dynamic range and wide frequency response.

1. The maximum voltage of the equipment is 72.5-550kV, with a rated frequency of 50/60Hz;
2. The power frequency withstand voltage is 160-740kV, the full wave impulse withstand voltage is 320-1675kV, the cut-off impulse withstand voltage is 1930 kV, and the operating impulse withstand voltage is 1175 kV;
3. Rated gas pressure �� 0.45Mpa;
4. Secondary output: IEC 61850-9-1:2D41H
IEC 61850-9-1: Primary voltage x 100

JED (S) H series SF6 gas insulated electronic voltage transformer

[110KV voltage transformer]JDX-110 High Voltage Voltage Transformer

2026-6-20 11:36:17

The JDX-110 voltage transformer is a fully sealed single-phase four winding oil paper insulation structure, with the body fixed in the oil tank. The upper and lower oil tanks are both circular structures. The porcelain sleeve is fixed on the upper part of the fuel tank with a pressure equalizing ring, and its top is equipped with a stainless steel expander, a primary wiring board, and an oil level indicator. The fuel tank is equipped with a pressure relief valve, and the lower part of the tank is equipped with a secondary outlet box, with an oil sample valve at the bottom.

Main technical data of JDX-110 high-voltage voltage transformer:

Rated voltage (KV)	Primary winding (AN)	110/��3
	Measure winding (1a1n)	0.1/��3
	Protection winding (2a2n)	0.1/��3
	Remaining voltage winding (dadn)	zero point one
Phase number, frequency (Hz)		Single phase, 50
Accuracy level and rated output (VA) of secondary winding cos ��=0.8	winding measurement	zero point two	one hundred
		zero point five	two hundred
		one	four hundred
	Protect the winding	3P	four hundred
Accuracy level and rated output (VA) of residual voltage winding		3P level, 300
Secondary winding limit output (VA)		two thousand
Rated insulation level (KV)
Partial discharge level (PC)		��10

JDX-110 High Voltage Voltage Transformer

[110KV voltage transformer]JSQX3-126 Gas Insulated Electromagnetic Voltage Transformer

2026-6-20 11:36:08

Product model: JSQX3-126

Product features: JSQX3-126 gas insulated electromagnetic voltage transformer is designed for use with 72.5-126KV three-phase composite metal enclosed electrical appliances, and is the main component of metal enclosed electrical appliances. This product meets the national standards GB1208 and IEC185.

Technical parameters of JSQX3-126 gas insulated electromagnetic voltage transformer:

Rated primary voltage: 100/�� 3KV
Rated frequency: 50-60Hz
Rated insulation level: 126/230/550KV
Partial discharge level:<5pC
Insulation medium: SF6
Rated gas pressure: 0.4Mpa
Minimum gas operating pressure: 0.35Mpa
At zero gauge pressure, the power frequency withstand voltage of the primary winding is 110KV for 5 minutes
Annual gas leakage rate:<0.5%
Gas moisture content: �� 150ppm
Accurate level combination:

Winding category	Rated voltage ratio (KV)	Accurate level combination	Rated output capacity combination (VA)	Secondary winding thermal limit output (VA)
three-winding	110/��3��0.1/��3��0.1	0.2��3P	150��300	two thousand
three-winding	110/��3��0.1/��3��0.1	0.5��3P	300��300	two thousand
Four windings	110/��3��0.1/��3��0.1��3��0.1	0.2��3P��3P	120��150��300	two thousand
		0.5��3P��3P	150��150��300	two thousand
		0.2��0.2��3P	75��100��300	two thousand
		0.2��0.5��3P	120��150��300	two thousand
		0.5��0.5��3P	150��150��300	two thousand

JSQX3-126 Gas Insulated Electromagnetic Voltage Transformer

[110KV voltage transformer]JDQX6-110 series high-voltage transformer

2026-6-20 11:35:58

JDQX6-110 series high-voltage transformer

[110KV voltage transformer]JDC6-110,JDCF-110 series high-voltage transformer

2026-6-20 11:35:50

The JDC6-110 and JDCF-110 series high-voltage transformers are outdoor products with electromagnetic oil immersed paper composite insulation and fully sealed structure, suitable for voltage and energy measurement and relay protection in neutral point effective grounding systems with rated voltage of 110kV and rated frequency of 50-60Hz.

3�� Structure Introduction and Product Features
The JDC6-110 and JDCF-110 series high-voltage transformers use oil immersed paper composite insulation and are fully enclosed outdoor products. This product has been carefully designed with low magnetic density, strong anti resonance ability, and low loss. The secondary winding can separate metering and protection, and can be specially designed for high loads according to user needs. Select stainless steel metal expander, adopt advanced vacuum drying and vacuum oil injection processing technology, with low medium loss and local discharge, ensuring the reliability of equipment operation

4�� The technical parameters of JDC6-110 and JDCF-110 series high-voltage transformers are shown in the table

model	JDC6-110W	JDCF-110W
The highest voltage of the equipment is kV	one hundred and twenty-six
Rated frequency Hz	50~60
Power frequency withstand voltage kV	two hundred and thirty
Full wave impulse withstand voltage kV	five hundred and fifty
Cut off impulse withstand voltage kV	six hundred and thirty-three
Dielectric loss factor	Overall �� 0.02, bracket �� 0.05
Partial discharge amount pC	��5
Primary winding N terminal to secondary and ground frequency withstand voltage kV	five
Secondary winding to ground power frequency withstand voltage kV	three
Creepage distance mm	31503906, etc
Rated voltage factor	1.2 Continuous/1.5 30s	1.2 Continuous/1.5 30s
Rated voltage ratio kV	110/��3/0.1/��3/0.1	110/��3/0.1/��3/0.1/��3/0.1
accuracy level	0.2(0.5��3P)/3P	0.2/0.5/3P
Rated output VA	150(300��500)/300	100/150/300
Maximum output VA	two thousand	two thousand

5�� JDC6-110, JDCF-110 series high-voltage transformer appearance and installation dimensions

JDC6-110, JDCF-110 series high-voltage transformers

[110KV voltage transformer]JDQX��-126 Gas Insulated Electromagnetic Voltage Transformer

2026-6-20 11:35:46

Product model: JDQX �� -126

Product features: JDQX �� -126 gas insulated electromagnetic voltage transformer is an outdoor independent gas insulated electromagnetic voltage transformer. This product meets the national standards GB1208 and IEC185. The insulation sleeve of the product can be suspended by customers with high-strength ceramic sleeves or silicone fiberglass sleeves.

Technical parameters:
Rated primary voltage: 100/�� 3KV
Rated frequency: 50-60Hz
Rated insulation level: 126/230/550KV
Partial discharge level:<5pC
External insulation creepage distance: 3150mm (can be designed according to customer needs)
External insulation arc flash distance: 1000mm (can be designed according to customer needs)
Creepage distance/arc flash distance: 3.15
Insulation medium: SF6
Rated gas pressure: 0.4Mpa
Minimum gas operating pressure: 0.35Mpa
At zero gauge pressure, the power frequency withstand voltage of the primary winding is 110KV for 5 minutes
Annual gas leakage rate:<1%
Gas moisture content: �� 150ppm
Accurate level combination:

Winding category	Rated voltage ratio (KV)	Accurate level combination	Rated output capacity combination (VA)	Secondary winding thermal limit output (VA)
three-winding	110/��3��0.1/��3��0.1	0.2��3P	Based on customer confirmation	two thousand
three-winding	110/��3��0.1/��3��0.1	0.5��3P	Based on customer confirmation	two thousand
Four windings	110/��3��0.1/��3��0.1��3��0.1	0.2��3P��3P	Based on customer confirmation	two thousand
		0.5��3P��3P		two thousand
		0.2��0.2��3P		two thousand
		0.2��0.5��3P		two thousand
		0.5��0.5��3P		two thousand

JDQX �� -126 Gas Insulated Electromagnetic Voltage Transformer

[110KV voltage transformer]TYD110 series high-voltage transformer

2026-6-20 11:35:41

The TYD110 series high-voltage transformer is an outdoor product consisting of a capacitive voltage divider and an electromagnetic unit. It is suitable for voltage and energy measurement relay protection in neutral point effective grounding systems with a rated voltage of 110kV and a rated frequency of 50Hz.

3�� Structure Introduction and Product Features
The TYD110 series high-voltage transformer consists of a capacitive voltage divider and an electromagnetic unit. The medium voltage terminal and low voltage terminal of the capacitive voltage divider are directly introduced into the oil tank containing the electromagnetic unit. The electromagnetic unit consists of an intermediate transformer, a compensating reactor, and a damper. The capacitive voltage divider consists of a ceramic sleeve, a capacitor core, capacitor oil, and a metal expander. The capacitor core is composed of several film paper composite media and aluminum foil wound components connected in series, and is subjected to vacuum impregnation treatment. Equipped with a metal expander to compensate for changes in oil volume with temperature. The secondary junction box is equipped with carrier communication terminals and overvoltage protection gaps.
The mutual inductance adopts a speed saturation damping device, which has a fast transient response speed and can reliably dampen ferromagnetic resonance. The product has optimized the sealing structure and has good sealing performance.

4�� Technical parameters of TYD110 series high-voltage transformer
Rated primary voltage: 110kV,
The maximum voltage of the equipment is 126kV,
Rated secondary voltage: 0.1/kV,
Rated voltage of residual voltage winding: 0.1kV,
The rated capacitance of the capacitive voltage divider (allowable deviation ± 5%) is shown in Table 1.

Table 1

Product model	TYD110/ -0.01H	TYD110/ -0.02H	TYD110/ -0.007H	TYD110/ -0.015H
High voltage rated capacitance C1 �� F	zero point zero one three one eight	zero point zero two nine three three three	zero point zero zero nine one six	zero point zero two one nine
Medium voltage rated capacitance C2 �� F	zero point zero four two three five	zero point zero six two eight five seven	zero point zero two nine six	zero point zero four seven three four
Rated capacitance of voltage divider CN �� F	zero point zero one	zero point zero two	zero point zero zero seven	zero point zero one five
Rated voltage division ratio	four point two one	three point one four	four point two three	three point one six

The rated load (cos ��=0.8 hysteresis) and accuracy level are shown in Table 2.

Table 2

Product Model	TYD110/ -0.01H	TYD110/ -0.02H	TYD110/ -0.007H	TYD110/ -0.015H
Primary and secondary winding 1 #	80VA/0.2 level	150VA/0.2 level	80VA/0.2 level	150VA/0.2 level
Main and secondary winding 2 #	100VA/0.5 level	150VA/0.5 level	100VA/0.5 level	150VA/0.5 level
Remaining voltage winding	300VA/3P level	300VA/3P level	300VA/3P level	300VA/3P level

5�� Appearance and installation dimensions

TYD110 series high-voltage transformer

[110KV voltage transformer]JCC6-110(W2),JCC6-110GYW2 series voltage transformer

2026-6-20 11:35:24

JCC6-110 (W2), JCC6-110GYW2 series voltage transformers

[110KV voltage transformer]JDQXF1-110W2(3) series outdoor dry-type SF6 electromagnetic voltage transformer

2026-6-20 11:35:15

JDQXF-110/220-W2 sulfur hexafluoride voltage transformer
Overview
This type of voltage transformer is an SF6 gas insulated transformer, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, voltage monitoring, and relay protection
Use it. This product complies with the standards of IEC60044-2:1997 and GB1207-1997 "Voltage Transformers".

Structure Introduction
This type of voltage transformer is single-phase and consists of a primary output terminal, porcelain bushing, housing, and SF6 gas density relay (see attached figure). The primary output terminal and bursting disc are installed on the top of the product, and the winding
The shielding body is installed inside the housing, and the density relay is installed on the housing.

Technical parameters of JDQXF1-110W2 (3) series outdoor dry-type SF6 electromagnetic voltage transformer

Maximum voltage of equipment (kV)	rated voltage ratio (kV)	Rated output (VA)			Maximum output (VA)	Frequency (Hz)	Altitude (m)	Total weight (kg)
		zero point two	zero point five	3P
one hundred and twenty-six	110/ 3/0.1/ 3/0.1/ 3/0.1	seventy-five	one hundred	three hundred	two thousand	50 or 60	one thousand	five hundred
	110/ 3/0.1/ 3/0.1	one hundred	one hundred and fifty	three hundred

JDQXF1-110W2 (3) series outdoor dry-type SF6 electromagnetic voltage transformer

[110KV current transformer]126KV PASS current transformer

2026-6-20 11:27:52

Product model: 126KV PASS current transformer

Product features: This product is used as a current transformer component in 126KV metal enclosed composite electrical appliances. The 126KVPASS current transformer winding follows the following standards:
GB1208-1997 "Current Transformers" (Chinese Standard)
IEC60044-1:2003 "Current transformers" (International Electrotechnical Commission standard)
BS 3938:1973 British Standard Grade X
IEC44-6-1992 Requirement for protective cruuent transformers
For transient performance (International Electrotechnical Commission standard)
GB16847-1997 "Technical Requirements for Transient Characteristics of Protective Current Transformers" (Chinese Standard)
ANSI/IEEE C57.13 "Technical Requirements for Transformers" (American Standard)

Technical parameters of 126KVPASS current transformer:

Rated primary current: 100-4000
Rated secondary current: 1, 5
Accuracy level: Can be combined according to customer requirements
0.2s��0.2��0.5s��0.5��
5P��10P��PX��
TPY��TPZ��TPX��
X. (British Standard)
0.3, 0.6, 1.2; (American Standard)
Class C (American Standard)
Rated load (VA): 10-50
Instrument security factor: 5, 10
Accurate limiting factor: 5-40

Other parameters are determined according to the execution standards. Customers can contact us if they have special requirements or when implementing other standards.

[110KV current transformer]126KV GIS current transformer

2026-6-20 11:26:55

Product model: 126KV GIS current transformer

Product features: This product is used as a current transformer component in 126KV metal enclosed composite electrical appliances.
The current transformer winding follows the following standards:
GB1208-1997 "Current Transformers" (Chinese Standard)
IEC60044-1��2003 ��Current transformers�� International Electrotechnical Commission Standards)
BS 3938:1973 British Standard Grade X
IEC44-6-1992 ��Requirement for protective cruuent transformers
For transient performance (International Electrotechnical Commission standard)
GB16847-1997 "Technical Requirements for Transient Characteristics of Protective Current Transformers" (Chinese Standard)
ANSI/IEEE C57.13 "Technical Requirements for Transformers" (American Standard)

Technical parameters of current transformer for 126KVGIS:
Rated primary current: 100-4000
Rated secondary current: 1, 5
Accuracy level: Can be combined according to customer requirements
0.2s��0.2��0.5s��0.5��
5P��10P��PX��
TPY��TPZ��TPX��
X. (British Standard)
0.3, 0.6, 1.2; (American Standard)
Class C (American Standard)
Rated load (VA): 10-50
Instrument security factor: 5, 10
Accurate limiting factor: 5-40
Other parameters are determined according to the execution standards. Customers can contact our company if they have special requirements or when implementing other standards.

[110KV current transformer]LEDH series SF6 insulated electronic current transformers for GIS

2026-6-20 11:26:16

The sensing head of the LEDH series SF6 gas insulated electronic current transformer for GIS uses Rogowski coil, without iron core. No magnetic saturation phenomenon, wide frequency band, large dynamic measurement range, and high measurement accuracy.

1. The maximum voltage of the equipment is 72.5-550kV;
2. Rated primary current 50-8000A;
3. Rated frequency 50/60Hz;
4. Power frequency withstand voltage 160-740kV, full wave impulse withstand voltage 320-1675kV, cut-off impulse withstand voltage 1930kV, and operational impulse withstand voltage 1175kV;
5. Rated gas pressure �� 0.45;
6. Rated secondary output: IEC 61850-9-1: Measurement channel: 2D41H
Protection channel: 01CFH
IEC 61850-9-2: Rated primary current x 1000

LEDH series SF6 gas insulated electronic current transformer for GIS

[110KV current transformer]LGBJ-110 (W1,W2,W3)} High Voltage Current Transformer

2026-6-20 11:26:12

LGBJ-110 (W1, W2, W3) High Voltage Current Transformer Execution Standard
The product performance complies with the national standard G81208 "Current Transformers"

Structure and Performance Characteristics of LGBJ-110 (W1, W2, W3) High Voltage Current Transformer
Organic composite insulation, oil-free, porcelain free, and gas free (SF6), with maintenance free operation. The external insulation is made of silicone rubber umbrella skirt, which has strong resistance to pollution, high voltage of pollution and wet flashover, low dielectric loss factor and local discharge level, small crystal volume, light weight, and easy transportation and installation.

Ordering Instructions
When placing an order, please specify the product model, rated current ratio, number and level combination of secondary windings, whether the secondary winding has a tap, and the rated negative value of the secondary winding
Dutch, anti pollution level.
If the product is used in high-altitude areas, please indicate the altitude.
Please consult with our technical department for products with special requirements.

1. Hanging board; 2 boxes; 3. Famous brand and secondary terminals; 4. Silicone rubber umbrella group; 5. Primary well connection: 6. Primary wiring terminal

[110KV current transformer]LZW-110 series high-voltage current transformer

2026-6-20 11:26:04

Technical parameters of LZW-110 series high-voltage current transformer

Dimensions of LZW-110 series high-voltage current transformer

LZW-110 series high-voltage current transformer

[110KV current transformer]SVAS126 series high-voltage current transformer

2026-6-20 11:25:55

Technical parameters of SVAS126 series high-voltage current transformer

Outline drawing of SVAS126 series high-voltage current transformer

SVAS126 series high-voltage current transformer

[110KV current transformer]LGB-110kV High Voltage Current Transformer

2026-6-20 11:25:46

LGB-110kV High Voltage Current Transformer

Rated voltage of the system: 110kV
System maximum voltage: 126 kV
System rated frequency: 50Hz
System neutral grounding method: direct
Rated primary current 5A~2500A
Rated secondary current 1A or 5A
Insulation level 126/185/450
Creepage distance �� 31mm/kV (Grade IV pollution)
Rated short-time thermal stability current 31.5kA/1second
Rated short-time dynamic stability current (peak) 80 Ka
Partial discharge level: �� 5pC at 1.2Um/�� 3 voltage

LGB-110kV High Voltage Current Transformer

[110KV current transformer]LB6-110KV(W2)(GYW2) Oil immersed current transformer

2026-6-20 11:25:33

LB6-110KV (W2) (GYW2) oil immersed current transformer

LB6-110 (W2) (GYW2) oil immersed current transformer

[110KV current transformer]LVB-110 High Voltage Current Transformer

2026-6-20 11:25:29

The LVB-110 current transformer is an inverted transformer. Five secondary windings are combined into a suspended ring and fixed in the oil tank on the upper part of the porcelain bushing; The secondary lead passes through the porcelain sleeve and is led out from the secondary wiring board on the base; The main insulation adopts a capacitive oil paper insulation structure. A winding is composed of a copper rod and a concentric circular tube, which are connected in series or parallel outside the oil tank. The upper part of the oil tank is equipped with a metal expander, and the side is equipped with a pressure release device for 0.35 ± 0.02Mpa blasting. There is an oil drain valve installed on the base for taking oil samples.

Main technical parameters of LVB-110 high-voltage current transformer:

Rated voltage (KV)	one hundred and ten
Polarity, rated frequency (Hz)	Reduce, 50
Rated primary current (A)	2 × 600/5 (secondary winding tap is 2 × 300/5)
Rated secondary current (A)	five
Accuracy level and combination	0.2/0.5/5P2/5P1/5P2
Rated load (VA)	50 (tap is 30)
Rated insulation level (KV)	126/185/450
Partial discharge level (PC)	��5PC
Instrument security factor	FS��5
Accurate limit coefficient	5P1��ALF��20�� 5P2��ALF��15

LVB-110 High Voltage Current Transformer

[110KV current transformer]LCWD2P-110 High Voltage Current Transformer

2026-6-20 11:25:20

The LCWD2P-110 current transformer is a porcelain box type oil paper insulated "8" - shaped structure. Wrap the secondary coil on the circular iron core, combine the three secondary windings together, and wrap them with insulation. Then wind a primary coil through its window, and wrap insulation around the primary coil. The primary and secondary coils form an "8" shape. Two sets of identical coils can be wound in one go, and two current ratios can be obtained by series or parallel connection of the output terminals on the oil storage tank (small current in series connection and twice the primary current in parallel connection). 1�� The secondary coil (body) is inside the porcelain sleeve and filled with transformer oil. The device body is fixed on the base, and the secondary output is sealed and led out by a small porcelain sleeve, and fixed on the base for wiring. The output end of the primary coil is also sealed and fixed on the outer wall of the oil storage tank with a small porcelain sleeve, making it easy to connect in series or parallel. The oil storage tank is equipped with a corrugated metal expander, which is also sealed. When the transformer oil of the transformer expands or contracts due to temperature changes, the volume of the metal expander also expands or contracts, maintaining a slight positive pressure inside the transformer. Therefore, it can prevent the external atmosphere from entering the transformer and causing the insulation of the transformer to become damp. The transformer is a fully sealed structure that can prevent moisture from entering and isolate the transformer oil from contact with the outside world, delay the aging of the transformer oil, and thus extend the life or maintenance period of the transformer.

Main technical data of LCWD2P-110 high-voltage current transformer:
1. Rated primary current: one of 2 × 50, 2 × 75, 2 × 100, 2 × 150, 2 × 200, 2 × 300, 2 × 400, and 2 × 600A.
2. Rated secondary current: 5A.
3. Accuracy level combination: 0.5/D/D level.
4. Rated output for Class 0.5 and Class D: 50VA (cos ��=0.8 hysteresis).
5. D-level 10% multiples are 15 times.
6. One second thermal stability current Ith=0.065I1nKA (I1n is the rated primary current), with a maximum of 45KA.
7. The dynamic stable current Idyn is 0.135I1nKA, with a maximum of 100KA.
8. Insulation level.
8.1 The primary winding to secondary winding and ground frequency test voltage is 250KV, lasting for 1 minute.
The power frequency test voltage between the secondary windings and the ground is 2KV, and the duration is 1 minute.
8.3 The full wave impulse test voltage for 1.5/40 microseconds is 425KV.

LCWD2P-110 High Voltage Current Transformer

[110KV current transformer]LVQB-110(W2) Silicone rubber composite sleeve sulfur hexafluoride current transformer

2026-6-20 11:25:02

LVQB-110 (W2) silicone rubber composite sleeve sulfur hexafluoride current transformer rated insulation level: rated short-time power frequency withstand voltage 230kV/rated lightning impulse withstand voltage 5500kV (peak).
The change in the rated current ratio of the product can be obtained by swapping the series parallel connection of the primary winding, such as 2 × 300/5; It can also be obtained by changing the middle tap of the secondary winding, as shown in Figure 300-600/5.

LVQB-110 (W2) silicone rubber composite sleeve sulfur hexafluoride current transformer

LVQB-110 (W2) silicone rubber composite sleeve sulfur hexafluoride current transformer

[110KV current transformer]LB3-110 type current transformer

2026-6-20 11:24:45

The LB3-110 current transformer is an electromagnetic oil paper insulated, outdoor, fully enclosed product. Used for current and energy measurement, as well as relay protection device power supply in AC power systems with a maximum voltage of 126kV and a rated frequency of 50Hz or 60Hz.

The LB3-110 current transformer can be equipped with 4 secondary windings, and the secondary measurement winding made of high permeability microcrystalline alloy can ensure measurement accuracy of 0.2 or 0.2S level.
This product comes with a stainless steel fully enclosed metal expander device; Imported rubber pads are used for sealing. All product casings are made of new processes and materials such as hot-dip galvanizing and stainless steel standard parts, ensuring that the entire machine is rust free. Due to its reasonable structure, advanced technology, novel materials, it ensures the reliable, safe, and durable operation of the product.
Usage environment
Maximum ambient temperature:+40 �� Minimum temperature: -30 �� Daily average temperature not exceeding+30 �� (special requirements products can be provided)

Main technical parameters of LB3-110 current transformer

serial number	name	unit	data
one	rated voltage	kV	one hundred and ten
two	Rated primary current	A	2×50~2×800
three	Rated secondary current	A	5 or 1
four	Accurate level combination		P/P/P/0.2(0.2S)
five	Instrument security factor		<10
six	Accurate limit coefficient	VA	15. 20
seven	total weight	kg	540~600

Ordering Instructions
Please indicate the product name, product model, current ratio, level combination, quantity, etc. when placing an order.
If the altitude of the usage location exceeds 1000m, and it is used in polluted areas or has other special requirements, it shall be specified in the contract.

Overall Dimension Drawing

LB3-110 type current transformer

[110KV current transformer]LVQB6-110W2 series high-voltage transformer

2026-6-20 11:24:37

LVQB6-110W2 series high-voltage transformer

[110KV current transformer]LB6-126KV series high-voltage current transformer

2026-6-20 11:24:28

The LB6-126KV series high-voltage current transformer is an oil immersed fully sealed insulation structure and outdoor product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, and relay protection.

2�� LB6-126KV series high-voltage current transformer model meaning

Anti pollution level (W2 is level III pollution, W3 is level IV pollution, GY is high-altitude area)
Rated voltage level, kV
Design Number
With protection level
current transformer

3�� Product Features and Structure Introduction
The LB6-126KV series high-voltage current transformer is an oil immersed fully sealed insulation structure, with the main insulation being an oil immersed paper capacitor composite insulation and the primary winding being in a "U" shape; The device is installed in an oil tank filled with transformer oil and undergoes vacuum drying and oil immersion treatment; The primary output terminal is connected in series or parallel to the oil storage tank as an external switching device, which can be switched outside the oil storage tank; A stainless steel metal expander is used as the oil compensation device, and the oil level indicator is indicated by the pointer position on the upper window of the expander. The secondary winding can be combined arbitrarily according to user needs, with strong load capacity. The internal electric field distribution is uniform and the field strength is low, with low partial discharge.

4�� Technical parameters of LB6-126KV series high-voltage current transformer

Rated insulation level kV	126/230/550
Rated primary current A	2×50��2×1250
Rated secondary current A	5 or 1
accuracy level	0.2S, 0.5S, 0.2, 0.5, 5P, 10P can be equipped with taps according to requirements
Rated output VA	20. 30, 40, 50, 60, etc
Number of secondary coils	3~8
Accurate level combination	Any combination of 0.2S/0.5/5P/5P/5P, etc
Measurement level instrument security factor	Fs��5
Protection level accuracy limit coefficient	10. 15, 20, 25, 30, 35, 40, etc
Short time thermal current kA/s	22.5~50/1, can be specially designed according to user needs
Rated dynamic stability current kA	56.25~125, can be specially designed according to user needs
Product dielectric loss factor	��0.005
Partial discharge amount pC	��5
Radio interference level �� V	��250
External insulation creepage distance mm	31503906, etc
Product altitude m	��3500

5�� LB6-126KV series high-voltage current transformer appearance and installation dimensions

LB6-126KV series high-voltage current transformer

[110KV current transformer]LB7-110W2(LB7-126W2) series high-voltage transformer

2026-6-20 11:24:20

The LB7-110 series high-voltage transformer is an oil immersed fully sealed insulation structure and outdoor product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 110kV for energy metering, current measurement, and relay protection.

3�� Introduction to the Characteristics and Structure of LB7-110W2 (LB7-126W2) Series High Voltage Transformers

This type of current transformer is an oil immersed fully sealed insulation structure, with the main insulation being a capacitive oil paper composite insulation. The primary winding is a deformed "U" byte shaped 1/4 aluminum tube or semi-circular aluminum tube or semi-circular copper tube, which improves the dynamic and thermal stability of the product; The device is installed in an oil tank filled with transformer oil and undergoes vacuum drying and oil immersion treatment; The primary output terminal is drilled on the upper part of the porcelain sleeve and can be connected in series or parallel outside the porcelain sleeve, or outside the oil storage tank; A stainless steel metal expander is used as the oil compensation device, and the oil level indicator is indicated by the pointer position on the upper window of the expander. The secondary winding can be combined arbitrarily according to user needs, with strong load capacity. The internal electric field distribution is uniform and the field strength is low, with low partial discharge.

4�� Technical parameters of LB7-110W2 (LB7-126W2) series high-voltage transformer

Rated insulation level kV	126/230/550
Rated primary current A	2×50��2×1250
Rated secondary current A	5 or 1
accuracy level	0.2S, 0.5S, 0.2, 0.5, 5P, 10P can be equipped with taps according to requirements
Rated output VA	20. 30, 40, 50, 60, etc
Number of secondary coils	3~8
Accurate level combination	Any combination of 0.2S/0.5/5P/5P/5P, etc
Measurement level instrument security factor	Fs��5
Protection level accuracy limit coefficient	10. 15, 20, 25, 30, 35, 40, etc
Short time thermal current kA/s	22.5~50/1, can be specially designed according to user needs
Rated dynamic stability current kA	56.25~125, can be specially designed according to user needs
Product dielectric loss factor	��0.005
Partial discharge amount pC	��5
Radio interference level �� V	��250
External insulation creepage distance mm	31503906, etc
Product altitude m	��3500

5�� LB7-110W2 (LB7-126W2) series high-voltage transformer appearance and installation dimensions

LB7-110 series high-voltage transformer

[110KV current transformer]LRGB-110W2 series current transformers

2026-6-20 11:24:12

LRGB-110W2 series current transformer

[110KV current transformer]LCWB6-110(W2),LCWB6-110GYW2 series current transformers

2026-6-20 11:24:03

The LCWB6-110 (W2) and LCWB6-110GYW2 series current transformers are oil tank ceramic bushing capacitive insulated U-shaped structures. The primary coil adopts a traditional U-shaped structure, which has good free characteristics and thermal breakdown stability.
The capacitive structure has a relatively uniform voltage distribution due to the level adjustment effect.

Main technical data of LCWB6-110 (W2), LCWB6-110GYW2 series current transformers:

1. Rated primary current: 2 × 50, 2 × 75, 2 × 100, 2 × 150, 2 × 200, 2 × 300, 2 × 400, 2 × 500, 2 × 600 (2 × 300), 2 × 750 (2 × 400), or 2 × 1000 (2 × 500) A.
2. Rated secondary current: 5A or 1A.
3. Rated frequency: 50Hz.
4. Accuracy level combination: p/p/p0.5 level.
5. Rated output.
5.1 For rated currents of 2 × 50-2 × 1000/5A, the rated output for levels 0.5 and P is 50VA.
5.2 For rated currents of 2 × 50-2 × 1000/1A, the rated output for levels 0.5 and P is 30VA.
5.3 For rated currents of 2 × 600, 2 × 750, and 2 × 1000/5A, the rated output of the 0.5 level winding tap (corresponding current ratios of 2 × 300, 2 × 400, and 2 × 500/1A) is 20VA.
6. 0.5 level instrument security factor (Fs): Fs �� 20.
7. P-level 10% multiples are 15 times.
8. The rated 1-second thermal stability current level dynamic stability current shall not be less than the values specified in the table below.

LCWB6-110 (W2), LCWB6-110GYW2 series current transformer

Rated primary current (A)	50-100	75-150	100-200	150-300	200-400	300-600
Rated short-time thermal current (KA)	5.3-10.6	7.9-15.8	10.5-21	15.8-31.5	21-42	31.5-45
Dynamic stability current (KA)	13-26	20-40	27-54	40-80	54-108	80-115

[66KV voltage transformer]JDZW-66 Outdoor Cast in place Voltage Transformer

2026-6-20 11:19:04

JDZW-66 Outdoor Cast in place Voltage Transformer

[66KV voltage transformer]TYD66 High Voltage Voltage Transformer

2026-6-20 11:18:56

Technical parameters of TYD66 high-voltage voltage transformer

Appearance and installation dimensions of TYD66 high-voltage voltage transformer

TYD66 High Voltage Voltage Transformer

[66KV voltage transformer]JZW-66KV Outdoor High Voltage Voltage Transformer

2026-6-20 11:18:48

JZW-66KV Outdoor High Voltage Voltage Transformer

[66KV voltage transformer]JCC5-66KV High Voltage Voltage Transformer

2026-6-20 11:18:39

JCC5-66 (W2) voltage transformer has the following characteristics:
1. Fully sealed metal expander with pressure relief device.
2. Equipped with a multi oil valve. The functions of taking oil samples, draining oil, and injecting oil are integrated into one.
3. High quality silicon steel sheets are used.
4. JCC5-66 (W2) voltage transformer winding measurement and protection load distribution are reasonable, with high accuracy.
5. Implement the standard GB1207-1997.

Technical parameters of JCC5-66KV high-voltage voltage transformer

Product Model

Rated voltage (kV)

Accuracy level and rated output (VA)

limit

output

(VA)

frequency

(Hz)

Altitude (m)

porcelain bushing

creepage

Distance (mm)

Oil weight/total weight (kg)

once

winding

second

winding

Remaining voltage winding

Secondary winding

Remaining voltage winding

zero point two

zero point five

one

JCC5-63

three hundred

five hundred

three hundred

3P level 100VA

two thousand

fifty

one thousand

one thousand four hundred and fifty

70/430

one hundred and fifty

two hundred and fifty

four hundred

three hundred

JCC5-66W2

three hundred

five hundred

three hundred

3P level 100VA

two thousand

fifty

one thousand

one thousand nine hundred and eighty

70/450

one hundred and fifty

two hundred and fifty

four hundred

three hundred

[66KV voltage transformer]JDCF-66(W2)KV series oil immersed voltage transformer

2026-6-20 11:18:31

The JDCF-66 (W2) voltage transformer has the following characteristics:

1. Fully sealed metal expander with pressure relief device.
2. The multi oil valve integrates the functions of taking oil samples, draining oil, and injecting oil into one.
3. High quality silicon steel sheets are used.
4. The winding measurement and protection load distribution are reasonable and have high accuracy.
5. Implement the standard GB1207-1997.

Technical parameters of JDCF-66 (W2) KV series oil immersed voltage transformer

Product Model

Rated voltage (kV)

Accuracy level and rated output (VA)

Maximum output (VA)

Frequency (Hz)

Altitude (m)

Ceramic sleeve creepage distance (mm)

Oil weight/total weight (kg)

once

winding

second

winding

Remaining voltage winding

Secondary winding

Remaining voltage winding

zero point two

zero point five

one

JDCF-66

(Measurement)

(Protection)

Measure winding:

0.2 level 100VA

(Protection winding output 100VA)

Grade 0.5 150VA

(Protection winding output 150VA)

Protection winding:

3P level 150VA

(Measure winding output of 150VA,

Remaining voltage winding output 100VA)

3P level 100VA

Measure the winding at this time

Output 150VA,

Protect winding output

150VA

two thousand

fifty

one thousand

one thousand five hundred and ninety

90/530

JDCF-66W2

(Measurement)

(Protection)

Measure winding:

0.2 level 100VA

(Protection winding output 100VA)

Grade 0.5 150VA

(Protection winding output 150VA)

Protection winding:

3P level 150VA

(Measure winding output of 150VA,

Remaining voltage winding output 100VA)

3P level 100VA

Measure the winding at this time

Output 150VA,

Protect winding output

150VA

two thousand

fifty

one thousand

two thousand and fifty

90/530

Ordering Instructions
1. Indicate the product model and voltage level;
2. If you have special needs, please invite someone or write to us for negotiation, and we will do our best to meet your requirements;
3. We are dedicated to providing you with high-quality products and first-class services.

[66KV voltage transformer]JDT-55KV High Voltage Voltage Transformer

2026-6-20 11:18:22

The JDT-55 voltage transformer is an electromagnetic oil paper insulated, fully sealed structure product for outdoor use. Used for voltage and energy measurement and relay protection in power systems with a maximum voltage of 63kV and a rated frequency of 50Hz or 60Hz with a neutral point effectively grounded.

The JDT-55 voltage transformer is designed with reliability and low magnetic density, which can reduce the probability of ferromagnetic resonance. The secondary winding separates measurement and protection, and the measurement accuracy can reach 0.2 level, meeting the different requirements of users and the high-precision measurement requirements proposed by the power department

JDT-55 Voltage Transformer

[66KV current transformer]LB6-66 Oil immersed high voltage current transformer

2026-6-20 11:13:29

LB6-66 Oil immersed High Voltage Current Transformer

[66KV current transformer]LVQB-66W2 high-voltage current transformer

2026-6-20 11:13:21

Technical parameters of LVQB-66W2 high-voltage current transformer

Outline drawing of LVQB-66W2 high-voltage current transformer

LVQB-66W2 High Voltage Current Transformer

[66KV current transformer]LRB type through type current transformer

2026-6-20 11:13:13

LRB type through type current transformer is used in conjunction with other equipment (such as PASS, circuit breaker outlet bushing, wall bushing, switch bushing, busbar, etc.), mainly for providing current measurement signals and protection signals.

The LRB type through type current transformer is composed of a secondary winding and a housing.
The secondary winding can also be supplied separately and used in conjunction with transformer outlet bushings or SF6 current transformers.

reference standard
GB 1208-2006 "Current Transformers"

Product Model
LRB: Through type current transformer with protective winding
L: Current Transformer
R: Through type (or embedded type)
B: With protective winding

Product Features
Excellent sealing performance, suitable for both indoor and outdoor use
Strong technical strength, capable of designing and manufacturing various secondary windings with special requirements

Terms of Use
Both indoors and outdoors are suitable
Environmental temperature: -50 �� to+50 ��

Main performance indicators of LRB type through type current transformer
Rated primary current: 50-12000A
Rated secondary current: 5A, or 1A
Rated capacity: 10-60VA
Measurement accuracy level of winding: 0.5, 0.5S, 0.2, 0.2S
Protection winding accuracy level: 5P, 10P, 5PR, 10PR, TPY
Electrical test
Operation and maintenance of polarity test, error test, volt ampere characteristic test, open circuit voltage test, etc
During operation, one end of the secondary winding should be grounded and not open circuited to avoid generating high voltage and endangering safety
maintenance-free

Ordering Instructions
When placing an order, please provide parameters such as rated current ratio, accuracy level, secondary load, inner and outer diameters, height, etc.
For protecting the winding, it is also necessary to provide accurate limit coefficients.
For TPY level protection windings, parameters such as working cycle, short-circuit coefficient, and accuracy retention time need to be provided.

[66KV current transformer]LGB-66kV High Voltage Current Transformer

2026-6-20 11:13:04

LGB-66kV High Voltage Current Transformer

[66KV current transformer]LZW-66KV Outdoor High Voltage Current Transformer

2026-6-20 11:12:55

LZW-66 Outdoor Current Transformer

[66KV current transformer]LGBJ-66KV dry-type current transformer

2026-6-20 11:12:47

LGBJ-66KV dry-type current transformer

[66KV current transformer]LB1-66KV Current Transformer

2026-6-20 11:12:38

The LB1-66 (W2) current transformer has the following characteristics:
1. The secondary iron core adopts high-quality imported silicon steel sheets with stable performance.
2. The secondary combination forms are diverse, which can fully meet the measurement and protection needs of ordinary lines, connecting lines, and user lines in the power system.
3. The product adopts a fully sealed structure, effectively preventing transformer oil and body from getting damp.
4. Equipped with a multi oil valve. The functions of taking oil samples, draining oil, and injecting oil are integrated into one.
5. Implement the standard GB1208-1997.

Technical parameters of LB1-66KV current transformer

Rated current ratio (A)	Common level combinations	Rated output (VA)		frequency (Hz)	altitude (m)	Ceramic sleeve creepage distance(mm)	Rated short-time1S thermal current (kA)	Rated dynamic stable current (kA)	Oil weight/Total weight (kg)
		Full turn	tap
2×50/5 (Tap 2 × 25/5)	0.5/5P15/5P15 0.5/5P20/5P20 0.2(0.5)/5P15/5P15 0.2(0.5)/5P20/5P20 0.2S(0.2)/5P15/5P15 0.2S(0.2)/5P20/5P20 0.2S(0.2)/5P25/5P25 0.2(0.5)/5P15/5P15/5P15 0.2(0.5)/5P15/5P20/5P15 0.2S(0.2)/5P15/5P15/5P15 0.2S(0.2)/5P15/5P20/5P15 0.2S(0.2)/0.5(0.5)/5P15/5P15 0.2S(0.2)/0.5(0.5)/5P20/5P15 (If the user has special requirements, non-standard design can be carried out)	fifty	thirty	fifty	one thousand	one thousand and five hundred W2: one thousand nine hundred and eighty W3 two thousand two hundred and fifty	5.3-10.5	13.5-27	90/430
2×75/5 (Tap 2 × 40/5)							7.9-15.8	20-40
2×100/5 (Tap 2 × 50/5)							10.5-21	27-54
2×150/5 (Tap 2 × 75/5)							15.8-31.5	40-80
2×200/5 (Tap 2 × 100/5)							20-40	50-100
2×300/5 (Tap 2 × 150/5)							22.5-45	56-112
2×400/5 (Tap 2 × 200/5)							25-50	62.5-125	100/460
2×600/5 (Tap 2 × 300/5)							25-50	62.5-125
2×750/5 (Tap 2 × 400/5)
2×1000/5 (Tap 2 × 500/5)									100/470

Ordering Instructions
1. Indicate the product model and voltage level;

LB1-66KV current transformer

[66KV current transformer]LB5-66(W) Oil immersed high voltage current transformer

2026-6-20 11:12:30

LB5-66 (W) oil immersed current transformer

[66KV current transformer]66-550KV series GIS current transformer

2026-6-20 11:12:21

Product model: 66-550KV series GIS current transformer

Product Features:
The 66-550KV series GIS current transformer is used as a current transformer component in 72.5-550KV metal enclosed composite electrical appliances. Perform a current transformer winding operation

Standard:
GB1208-1997 "Current Transformers" (Chinese Standard)
IEC60044-1��2003 ��Current transformers�� International Electrotechnical Commission Standards)
BS 3938:1973 British Standard Grade X
IEC44-6-1992 Requirement for protective cruuent transformers
For transient performance (International Electrotechnical Commission standard)
GB16847-1997 "Technical Requirements for Transient Characteristics of Protective Current Transformers" (Chinese Standard)
ANSI/IEEE C57.13 "Technical Requirements for Transformers" (American Standard)

Technical parameters of current transformers for 66-550KV series GIS:

Rated primary current: 100-4000
Rated secondary current: 1, 5
Accuracy level: Can be combined according to customer requirements
0.2s��0.2��0.5s��0.5��
5P��10P��PX��
TPY��TPZ��TPX��
X. (British Standard)
0.3, 0.6, 1.2; (American Standard)
Class C (American Standard)
Rated load (VA): 10-50
Instrument security factor: 5, 10
Accurate limiting factor: 5-40

The other parameters of the current transformers used in the 66-550KV series GIS shall be determined according to the implemented standards. Customers can contact us if they have special requirements or when implementing other standards.

[66KV current transformer]LCWB5-66 High Voltage Current Transformer

2026-6-20 11:12:13

Technical parameters of LCWB5-66 high-voltage current transformer

Dimensions of LCWB5-66 High Voltage Current Transformer

LCWB5-66 High Voltage Current Transformer

[27.5KV voltage transformer]JZW-27.5KV type outdoor low magnetic density voltage transformer

2026-6-20 11:07:10

JZW-27.5KV Outdoor Low Magnetic Density Voltage Transformer

[27.5KV voltage transformer]JDTN1,JDTN2-27.5 type voltage transformer

2026-6-20 11:07:01

The JDTN1-27.5 (formerly JDT1-27.5) and JDTN2-27.5 (formerly JDT2-27.5) series voltage transformers are suitable for measuring the voltage on the traction bus in railway electrified electric traction power supply systems with a rated voltage of 27.5kV and a rated frequency of 50Hz. The JDTN1-27.5 (formerly JDT1-27.5) voltage transformer is a semi insulated structure; The JDTN2-27.5 (formerly JDT2-27.5) voltage transformer is a fully insulated structure.

[27.5KV voltage transformer]JDZ11-27.5Q type indoor low magnetic density voltage transformer

2026-6-20 11:06:53

JDZ11-27.5Q Indoor Low Magnetic Density Voltage Transformer

[27.5KV voltage transformer]JDZ12-35(27.5) Indoor Cast in place Voltage Transformer

2026-6-20 11:06:45

Technical Parameters of JDZ12-35 (27.5) Indoor Cast in place Voltage Transformer

JDZ12-35 (27.5) Indoor Cast in place Voltage Transformer Dimensions

JDZ12-35 (27.5) Indoor Cast in place Voltage Transformer

[27.5KV voltage transformer]JDZ9-27.5 type voltage transformer

2026-6-20 11:06:36

The JDZ9-27.5 voltage transformer is a single-phase double winding and three winding epoxy resin cast fully enclosed indoor device voltage transformer, suitable for precise voltage and energy measurement and relay protection in AC systems with a rated frequency of 50Hz and a maximum working voltage of 40.5kV (nominal voltage 27.5kV).
·Environmental temperature: The normal type is+40 ��~-15 ��; The plateau type ranges from+25 �� to -15 ��.
·Environmental humidity: The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%; The daily average saturated vapor pressure shall not exceed 2.2 × 10-3MPa, and the monthly average shall not exceed 1.8 × 10-3MPa.
·Product type: Indoor.
·Atmospheric conditions: There is no pollution or explosive medium in the installation site that seriously affects the insulation of the transformer.
·The installation site has no severe vibrations or bumps-
·Open circuit is not allowed during product operation, otherwise there is a high voltage hazard.
·The temperature during transportation and storage ranges from+40 �� to -15 ��.
·When using the product, the equipotential lead wire should be reliably connected to the high-voltage bus.
�� Technical Parameters ��
·Product execution standard: GB1207-1997 "Voltage Transformers".
·Rated insulation level: 40.5/95/200kV.
·Insulation and heat resistance grade: Grade E.
·The impulse test voltage of JDZ9-27.5 voltage transformer complies with the provisions of GB311-64, that is, the full wave is 200kV, the cut-off wave is 230kV, and the induced test voltage value is 80kV, 15s (400Hz). The secondary winding is connected to ground at 3kV for 1 minute.

model	Rated voltage ratio (V)	Accurate level or level combination	Rated output (VA)	Maximum output (VA)
JDZ9-27.5	27500/100	Level 0.2	sixty	one thousand
		Level 0.5	one hundred and eighty
		Level 1	three hundred and sixty
	27500/100/100	Level 0.2/0.5	30/50	six hundred

JDZ9-27.5 Voltage Transformer

[27.5KV voltage transformer]JDZX9-27.5 type voltage transformer

2026-6-20 11:06:28

The JDZX9-27.5 voltage transformer is a single-phase double winding and three winding epoxy resin cast fully enclosed indoor device voltage transformer, suitable for precise voltage and energy measurement and relay protection in AC systems with a rated frequency of 50Hz and a maximum working voltage of 40.5kV (nominal voltage 27.5kV).
·Environmental temperature: The normal type is+40 ��~-15 ��; The plateau type ranges from+25 �� to -15 ��.
·Environmental humidity: The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%; The daily average saturated vapor pressure shall not exceed 2.2 × 10-3MPa, and the monthly average shall not exceed 1.8 × 10-3MPa.
·Product type: Indoor.
·Atmospheric conditions: There is no pollution or explosive medium in the installation site that seriously affects the insulation of the transformer.
·The installation site has no severe vibrations or bumps-
·Open circuit is not allowed during product operation, otherwise there is a high voltage hazard.
·The temperature during transportation and storage ranges from+40 �� to -15 ��.
·When using the product, the equipotential lead wire should be reliably connected to the high-voltage bus.
�� Technical Parameters ��
·Product execution standard: GB1207-1997 "Voltage Transformers".
·Rated insulation level: 40.5/95/200kV.
·Insulation and heat resistance grade: Grade E.
·The impulse test voltage of the transformer complies with the provisions of GB311-64, which means that the full wave is 200kV, the cut-off wave is 230kV, and the induced test voltage value is 80kV, 15s (400Hz). The secondary winding is connected to ground at 3kV for 1 minute.

model	Rated voltage ratio (V)	Accurate level or level combination	Rated output (VA)	Maximum output (VA)
JDZX9-27.5	27500/��3 100/��3��100/3	0.2/6P	30/100	six hundred
		0.5/6P	90/100
		1/6P	180/100
	27500/��3 100/��3��100/��3��100/3	0.2/0.5/6P	20/30/100	three hundred

JDZX9-27.5 Voltage Transformer

[27.5KV voltage transformer]JDT-27.5 High Voltage Voltage Transformer

2026-6-20 11:06:20

JDT-27.5 High Voltage Voltage Transformer

[27.5KV current transformer]LZZB8-27.5 type current transformer

2026-6-20 11:04:35

LZZB8-27.5 type current transformer

[27.5KV current transformer]LZZBJ71-27.5 outdoor current transformer

2026-6-20 11:04:27

LZZBJ71-27.5 Outdoor Current Transformer

[27.5KV current transformer]Voltage Transformer for EN_1 Type

2026-6-20 11:04:18

JDZX6-20, The 27.5 type CGIS voltage transformer is used in conjunction with the CGIS cabinet, installed outside the SF6 gas chamber and closely matched with the internal cone insulator inside the gas chamber. Used for voltage measurement, energy metering, and relay protection in AC 50-60Hz power systems.

The JDZX6-20,27.5,35RCQ2 CGIS voltage transformer adopts high-performance iron core, high-quality enameled wire and insulation material. It is insulated by epoxy resin casting and covered with a metal shell or sprayed with metal material to provide shielding and grounding protection, achieving a touchable effect.

The JDZX6-20,27.5,35RCQ2 CGIS voltage transformer has a small volume, light weight, beautiful appearance, easy installation, adopts advanced design concepts, excellent product performance, accurate measurement, safety and reliability, small partial discharge, and is also equipped with fuse protection. All performance fully meets the GB1207-2006 national standard and IEC60044-2 international electrical standard.
The main technical parameters of JDZX6-20,27.5,35RCQ2 CGIS voltage transformers are as follows:

Rated insulation level:
24/65/125kV ��JDZX6-20RCQ2��
31.5/80/185kV ��JDZX6-27.5RCQ2��
40.5/95/200kV ��JDZX6-35RCQ2��

Rated voltage ratio:
24/��3/0.1/��3/0.1/��3/0.1/3kV
27.5/��3/0.1/��3/0.1/��3/0.1/3kV
35/��3/0.1/��3/0.1/��3/0.1/3kV

Accuracy level: 0.2/0.5/3P

Rated secondary load:
10/15/50VA
15/20/50 (or 100) VA

[27.5KV current transformer]LZZBJ-27.5(GYW1) type current transformer

2026-6-20 11:04:10

LZZBJ-27.5 (GYW1) current transformer is suitable for areas with an altitude of 1000m and below, and high-altitude products are suitable for areas with an altitude of 2500m and below. It is used for precision electrical measurement and relay protection in power systems with a frequency of 50Hz and a maximum operating voltage of 40.5kV.
Environmental temperature: The normal type is+40 ��~-15 ��; The plateau type ranges from+25 �� to -15 ��.
Product type: Indoor.
Atmospheric conditions: There is no pollution or explosive medium in the installation site that seriously affects the insulation of the transformer.
The installation site has no severe vibrations or bumps.
Open circuit is not allowed during product operation, otherwise there is a high voltage hazard.
The temperature during transportation and storage ranges from+40 �� to -15 ��.

Technical parameters of LZZBJ-27.5 (GYW1) current transformer

Product execution standard: GB1208-1997 "Current Transformers".
Rated secondary current: 5A and 1A.
Instrument security factor: 0.2S level FS �� 5; Level 0.2 and 0.5 FS �� 10.
Insulation and heat resistance grade: Grade E.
Secondary structure: two coils, three coils, four coils.
The rated secondary lower limit load is 25% of the rated secondary load.
The rated primary current value, rated secondary load, accurate limit coefficient, rated short-time current value, level combination, and weight are listed in the following table. Please consult with the manufacturer for special specification products.

insulation level

Ordinary type: 40.5/95/185kV
Plateau type: 40.5/110/226 kV (below 2500m)

accuracy level

0.2S��0.2��0.5��
5P��10P

Partial discharge capacity

The applied voltage is 80% of the power frequency withstand voltage, and after 60 seconds, it drops to the measured voltage of 28 kV with a discharge capacity of �� 20pC.

rated

once

current

��A��

Rated secondary load (VA) COS ��=0.8

5P and 10P level standards

Limit coefficient

1S short-term

Thermal current

��kA��

Dynamic stability

current

��kA��

0.2S

zero point two

zero point five

5P��10P

twenty

ten

thirty

ten

thirty

ten

thirty

fifty

ten

two point five

six point three

thirty

four point five

twelve

forty

six point three

sixteen

fifty

eight

twenty

seventy-five

twelve point five

thirty-one point five

one hundred

twenty-two point five

fifty

one hundred and fifty

twenty-five

sixty-three

two hundred

thirty-one point five

eighty

300~500

forty-five

one hundred and ten

600~1500

sixty-three

one hundred and thirty

1. Two coils: Appearance: 405 × 300 × 550 (length × width × height), Level combination: 0.2S/0.2S; 0.2S/5P��
2. Three coils: Appearance: 420 × 300 × 550 (length × width × height), Level combination: 0.2S/0.2S/0.2S; 0.2S/0.2S/5P��
3. Four coils: Appearance: 480 × 300 × 550 (length × width × height), Level combination: 0.2S/0.2S/0.2S/0.2S; 0.2S/0.2S/5P/5P��
4. The measurement levels are interchangeable, and special products with two coils can also be produced using three coil and four coil shapes.

LZZBJ-27.5 (GYW1) type current transformer

[27.5KV current transformer]LZZB7-27.5,LZZB7-35GYW1 type current transformer

2026-6-20 11:04:02

The LZZB7-27.5 and LZZB7-35GYW1 current transformers are epoxy resin cast fully enclosed pillar structures. Suitable for indoor power systems with a rated voltage of 35KV and below, and a rated frequency of 50HZ or 60HZ, used for current and energy metering and relay protection. The characteristics of this product include high dynamic and thermal stability parameters, large secondary output capacity, stable insulation performance, strong resistance to pollution and moisture, etc. It can completely replace old similar products such as LCZ-35 and LZZ-35Q.

3.1 Installation site indoor
3.2 Environmental temperature -5 ��~+40 ��
3.3 Altitude not exceeding 3000 meters
3.4 Pollution level is Level II, with a climbing distance greater than 1000mm
When the relative humidity of the air does not exceed 90 and the temperature is 25 ��
3.6 Gas, steam, dust, and other explosive or corrosive media that do not seriously affect the insulation of transformers
3.7 Installation site without severe vibration and turbulence

4.1 The product complies with the standards GB1208 and IEC185;
4.2 Rated insulation level 42/95/2000KV;
4.3 Rated secondary current 5A or 1A.

LZZB7-27.5, LZZB7-35GYW1 current transformers

[15KV voltage transformer]JZW-15 Outdoor Voltage Transformer with Fuse Protection

2026-6-17 11:34:06

JZW-15 Outdoor Voltage Transformer with Fuse Protection

[15KV voltage transformer]JSZV2-15R series three-phase voltage transformer

2026-6-17 11:33:57

JSZV2-15R series three-phase voltage transformer

[15KV voltage transformer]JDZ11-17.5 type voltage transformer

2026-6-17 11:33:49

JDZ11-17.5 Voltage Transformer

[15KV voltage transformer]JDZX9-17.5A type voltage transformer

2026-6-17 11:33:40

JDZX9-17.5A Voltage Transformer

[15KV voltage transformer]JDZ9-17.5A type voltage transformer

2026-6-17 11:33:31

JDZ9-17.5A Voltage Transformer

[15KV voltage transformer]JSZV18-15R type voltage transformer

2026-6-17 11:33:21

JSZV18-15R Voltage Transformer

[15KV voltage transformer]JDZX10-15R type voltage transformer

2026-6-17 11:33:13

JDZX10-15R Voltage Transformer

[15KV voltage transformer]JDZX11-15 type indoor voltage transformer

2026-6-17 11:33:05

JDZX11-15 Indoor Voltage Transformer

[15KV voltage transformer]JDZ11-15 type indoor voltage transformer

2026-6-17 11:32:56

JDZ11-15 Indoor Voltage Transformer

[15KV voltage transformer]JDZX3-15 type voltage transformer

2026-6-17 11:32:47

JDZX3-15 voltage transformer is a single-phase, cast insulation, fully enclosed structure, indoor device, used for voltage and energy measurement and relay protection in 15kV AC systems.

Introduction to JDZX3-15 Voltage Transformer

JDZX3-15 Voltage Transformer

[15KV voltage transformer]JDZ3-15 type voltage transformer

2026-6-17 11:32:38

JDZ3-15 voltage transformer is a single-phase, cast insulation, fully enclosed structure, indoor device, used for voltage and energy measurement and relay protection in 15kV AC systems.

Product Introduction

JDZ3-15 Voltage Transformer

[15KV voltage transformer]JDZJ2-15(GY) type voltage transformer

2026-6-17 11:32:29

JDZJ2-15 (GY) voltage transformer is a single-phase, cast insulation, indoor device used for voltage and energy measurement and relay protection in 15kV AC systems.

JDZJ2-15 (GY) Voltage Transformer

[15KV voltage transformer]JDZJ1-15 type voltage transformer

2026-6-17 11:32:20

JDZJ1-15 voltage transformer is a single-phase, cast insulation, indoor device used for voltage and energy measurement and relay protection in 15kV AC systems.

Introduction to JDZJ1-15 Voltage Transformer

JDZJ1-15 Voltage Transformer

[15KV voltage transformer]JDZJ-15 type voltage transformer

2026-6-17 11:32:12

JDZJ-15 voltage transformer is a single-phase, cast insulation, indoor device used for voltage and energy measurement and relay protection in 15kV AC systems.

Introduction to JDZJ-15 Voltage Transformer

JDZJ-15	13800/��3/100/��3-100/3		forty	sixty	one hundred and fifty	three hundred	16/55/95
JDZJ-15	15000/��3/100/��3-100/3		forty	sixty	one hundred and fifty	three hundred	17.5/55/95

The product complies with GB1207

JDZJ-15 Voltage Transformer

[15KV voltage transformer]JDZXF11-15 type voltage transformer

2026-6-17 11:32:04

JDZXF11-15 Voltage Transformer

[15KV voltage transformer]JDZX11-15G type voltage transformer

2026-6-17 11:31:55

JDZX11-15G Voltage Transformer

[20KV voltage transformer]JDZ11-20W,JDZX11-20WG type voltage transformer

2026-6-16 11:39:59

JDZ11-20W, JDZX11-20WG voltage transformer

[20KV voltage transformer]JDZ1-20RWG type voltage transformer

2026-6-16 11:39:50

JDZ1-20RWG Voltage Transformer

[20KV voltage transformer]JZW-17.5 type outdoor voltage transformer for railway use

2026-6-16 11:39:42

JZW-17.5 Outdoor Voltage Transformer for Railway Use

[20KV voltage transformer]JSZV2-20R series three-phase voltage transformer

2026-6-16 11:39:33

JSZV2-20R series three-phase voltage transformer

[20KV voltage transformer]REL20 type voltage transformer

2026-6-16 11:39:24

REL20 type voltage transformer

[20KV voltage transformer]UNE20 type voltage transformer

2026-6-16 11:39:16

UNE20 type voltage transformer

[20KV voltage transformer]JSZV18-20R type voltage transformer

2026-6-16 11:39:08

Technical parameters of JSZV18-20R voltage transformer:

The performance of electrical products meets the standards GB1207 and IEC60044-2;
Rated insulation level 24/65/125, 18/55/105V;
Rated frequency 50Hz or 60Hz.

JSZV18-20R voltage transformer external dimensions:

JSZV18-20R Voltage Transformer

[20KV voltage transformer]JDZF11-20 type voltage transformer

2026-6-16 11:38:58

JDZF11-20 Voltage Transformer

[20KV voltage transformer]JDZXF11-20 type voltage transformer

2026-6-16 11:38:50

JDZXF11-20 Voltage Transformer

[20KV voltage transformer]JDZ9-24 type voltage transformer

2026-6-16 11:38:41

JDZ9-24 Voltage Transformer

[20KV voltage transformer]JDZX11-20 type indoor voltage transformer

2026-6-16 11:38:33

JDZX11-20 Indoor Voltage Transformer

[20KV voltage transformer]JDZ11-20G type indoor voltage transformer

2026-6-16 11:38:24

JDZ11-20G Indoor Voltage Transformer

[20KV voltage transformer]JZW-24,JZWX-24 outdoor voltage transformer

2026-6-16 11:38:16

JZW-24, JZWX-24 Outdoor Voltage Transformers

[20KV voltage transformer]JZW-20,JZWX-20 outdoor voltage transformer

2026-6-16 11:38:07

JZW-20, JZWX-20 Outdoor Voltage Transformer

[20KV voltage transformer]JDZX8-20(24) type voltage transformer

2026-6-16 11:37:59

JDZX8-20 (24) Voltage Transformer

[20KV voltage transformer]JDZX4-20 type voltage transformer

2026-6-16 11:37:51

JDZX4-20 voltage transformer is a single-phase, cast insulation, fully enclosed structure, indoor device, used for voltage and energy measurement and relay protection in 20kV AC systems.

JDZX4-20 Voltage Transformer

[20KV voltage transformer]JDZX3-20 type voltage transformer

2026-6-16 11:37:42

JDZX3-20 voltage transformer is a single-phase, cast insulation, fully enclosed structure, indoor device, used for voltage and energy measurement and relay protection in 20kV AC systems.

JDZX3-20 Voltage Transformer

[20KV voltage transformer]JDZX2-20 type voltage transformer

2026-6-16 11:37:34

The JDZX2-20 voltage transformer is a single-phase, cast insulation, indoor device used for voltage and energy measurement and relay protection in a 20kV AC system.

Product Introduction

JDZX2-20 Voltage Transformer

[20KV voltage transformer]JDZX1-20 type voltage transformer

2026-6-16 11:37:25

The JDZX1-20 voltage transformer is a single-phase, cast insulation, indoor device used for voltage and energy measurement and relay protection in a 20kV AC system.

Introduction to JDZX1-20 Voltage Transformer

JDZX1-20 Voltage Transformer

[20KV voltage transformer]JDZJ-20 type voltage transformer

2026-6-16 11:37:17

The JDZJ-20 voltage transformer is a single-phase, cast insulation, indoor device used for voltage and energy measurement and relay protection in a 20kV AC system.

Technical parameters of JDZJ-20 voltage transformer:

JDZJ-20 Voltage Transformer

[20KV voltage transformer]JDZ9-20 type voltage transformer

2026-6-16 11:37:08

JDZ9-20 Voltage Transformer

[20KV voltage transformer]JDZX9-20 type voltage transformer

2026-6-16 11:37:00

JDZX9-20 Voltage Transformer

[20KV voltage transformer]JDZX9-20D type voltage transformer

2026-6-16 11:36:52

JDZX9-20D Voltage Transformer

[20KV current transformer]LR(B)Z-20 type Bus type current transformer

2026-6-16 11:36:44

LR (B) Z-20 type busbar current transformer for generators

[20KV voltage transformer]JDZX9-20DG type voltage transformer

2026-6-16 11:36:43

JDZX9-20DG Voltage Transformer

[20KV voltage transformer]JDZX10-20R type voltage transformer

2026-6-16 11:36:35

JDZX10-20R Voltage Transformer

[20KV voltage transformer]JDZ11-20 series voltage transformer

2026-6-16 11:36:26

JDZ11-20 series voltage transformer

Product model: JDZ11-20
Location of use: Indoor
Technical parameters: Maximum accuracy of 0.2 level
Ultimate capacity: 500VA

The JDZ11-20 series voltage transformer is suitable for electrical measurement and protection in power systems with a rated frequency of 50-60Hz and a rated voltage of 15-20kV. This series of products are fully enclosed and maintenance free products cast with epoxy resin.
Can be used as a power transformer.

JDZ11-20 series voltage transformer

[20KV current transformer]LMZB8-20 type current transformer

2026-6-16 11:34:37

LMZB8-20 current transformer

[20KV current transformer]LZZB8-20/175b/2 type current transformer

2026-6-16 11:34:28

LZZB8-20/175b/2 type current transformer

[20KV current transformer]LZZB8-20/185b/3 type current transformer

2026-6-16 11:34:20

LZZB8-20/185b/3 type current transformer

[20KV current transformer]LZZB8-20/180b(220)b series current transformers

2026-6-16 11:34:12

LZZB8-20/180b (220) b series current transformer

[20KV current transformer]LZZB8-20A/185h/1 type current transformer

2026-6-16 11:34:03

LZZB8-20A/185h/1 type current transformer

[20KV current transformer]LZZB2-24W type current transformer

2026-6-16 11:33:55

LZZB2-24W type current transformer

[20KV current transformer]JDZW-20 outdoor current transformer

2026-6-16 11:33:46

JDZW-20 Outdoor Current Transformer

[20KV current transformer]LZZBW-24 series current transformers

2026-6-16 11:33:36

LZZBW-24 series current transformer

[20KV current transformer]LRZ-20,LRZB-20 series high-voltage current transformer

2026-6-16 11:33:27

LRZ-20, LRZB-20 series high-voltage current transformers

[20KV current transformer]LMZB5-20 type current transformer

2026-6-16 11:33:18

LMZB5-20 type current transformer

[20KV current transformer]LMZB4-20 series high-voltage current transformer

2026-6-16 11:33:09

LMZB4-20 series high-voltage current transformer

[20KV current transformer]LMZB3-20 series high-voltage current transformer

2026-6-16 11:33:01

LMZB3-20 series high-voltage current transformer

[20KV current transformer]LMZB1-20 series high-voltage current transformer

2026-6-16 11:32:51

LMZB1-20 series high-voltage current transformer

[20KV current transformer]LZZBJ12-20 series high-voltage current transformer

2026-6-16 11:32:43

LZZBJ12-20 series high-voltage current transformer

[20KV current transformer]LDCJ1-20 High precision through core current transformer

2026-6-16 11:32:34

LDCJ1-20 high-precision through core current transformer

[20KV current transformer]LDCJ2-20 High precision through core current transformer

2026-6-16 11:32:26

LDCJ2-20 high-precision through core current transformer

[20KV current transformer]LDK-24 Open type current transformer

2026-6-16 11:32:17

LDK-24 Open Current Transformer

[20KV current transformer]LZW-20 Pillar type fully enclosed outdoor cast insulation current transformer

2026-6-16 11:32:09

The LZW-20 current transformer is an outdoor epoxy resin cast insulation fully enclosed structure. Suitable for current and energy measurement and relay protection in outdoor power systems with rated voltage of 10kV and below and rated frequency of 50Hz or 60Hz.

Structural features:
The LZW-20 pillar type fully enclosed outdoor cast insulation current transformer is made of outdoor epoxy resin and is molded as a whole. It has the characteristics of arc resistance, UV resistance, aging resistance, and long service life. The iron core is made of high-quality high magnetic conductivity material and annealed. The primary and secondary windings as well as the iron core are all cast in epoxy resin, which has excellent insulation performance. The outgoing line is located at the top of the casting body and is marked as P1 and P2. The output terminals of the measurement level winding are 1S1 and 1S2; The protection level winding outgoing lines are marked as 2S1 and 2S2, the transformer is of reduced polarity, and the secondary wiring part has a protective cover. And it can implement measures to prevent electricity theft. There are 4 mounting holes on the base for installation. Rated insulation level: 12/42/75kV;

Technical Specifications:
Load power factor: COS ��=0.8 (lag);
Rated secondary current: 5A or 1A;
Product standard: GB1208-2006;
Pollution level: Level IV;
Altitude �� 2000 meters;
The measurement level can be made into 0.5S or 0.2S level;
Can be made into a complex ratio structure;
Environmental temperature: minimum temperature of 40 ��, maximum temperature of 40 ��, daily average temperature not exceeding 30 ��;

Main technical parameters:

[20KV current transformer]LMZB-20 Bus type current transformer

2026-6-16 11:31:52

LMZB-20 type busbar current transformer for generators

[20KV current transformer]LM(D)ZB2-20 type indoor current transformer

2026-6-16 11:31:44

LM (D) ZB2-20 Indoor Current Transformer

[20KV current transformer]LZZB9-24/220b/2LZZB9-24/220b/4 type indoor current transformer

2026-6-16 11:31:36

LZZB9-24/220b/2LLZZB9-24/220b/4 indoor current transformer

[20KV current transformer]LZZB9-24/180b/2,LZZB9-24/180b/4 type indoor current transformer

2026-6-16 11:31:27

LZZB9-24/180b/2 LZZB9-24/180b/4 indoor current transformer

[20KV current transformer]LZW-24 outdoor current transformer

2026-6-16 11:31:19

LZW-24 Outdoor Current Transformer

[20KV current transformer]LMZBJ-20 type current transformer

2026-6-16 11:31:10

LMZBJ-20 type current transformer

[20KV current transformer]LZZBJ9-20 type current transformer

2026-6-16 11:31:02

The LZZBJ9-20 current transformer is an epoxy resin cast fully enclosed pillar type product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 20kV and below, for energy metering, current measurement, and relay protection. This product complies with the standards of IEC44-1:1996 and GB1208-2006 "Current Transformers".

Structure Introduction
The LZZBJ9-20 current transformer is a fully enclosed structure made of epoxy resin casting, which is resistant to pollution and moisture. During installation, tighten the primary lead screw to ensure reliable contact.

Technical data of LZZBJ9-20 current transformer
1. Rated insulation level: 24/65/125kV.
2. Rated secondary current: 5A, 1A
3. The rated primary current, accuracy level combination, rated output, and rated dynamic and thermal stability current are shown in Table 4. The partial discharge level complies with the GB1208-2006 standard for current transformers.

Rated primary current t��A��	Accurate level combination	rated output ��VA��	Rated short-time thermal current ��Ith��	Rated dynamic stable current ��Idyn��
20-100	0.2S/0.2S 0.2S/0.5 0.5/10P10 0.2S/0.5/10P10 0.2/0.5/10P10 0.2S/10P10/10P10	15/15 15/20 15/20 10/15/20 10/15/20 10/15/20/20	150I1n	375I1n
150��200			thirty-one point five	eighty
300��400			forty-five	one hundred and twelve point five
500��600			sixty-three	one hundred and thirty
800-100	0.2S/0.5/10P10 0.2S/10P10 0.5/10P10 0.2S/0.2S	15/15/30	eighty	one hundred and sixty
		15/30
		15/30
		15/12

Outline and installation dimensions of LZZBJ9-20 current transformer

LZZBJ9-20 current transformer

[20KV current transformer]LZZBJ9-24/220B/2S series current transformers

2026-6-16 11:30:53

LZZBJ9-24/220B/2S series current transformer

[20KV current transformer]LFZJD-20 Current Transformer

2026-6-16 11:30:45

The LFZJD-20 current transformer is a multi turn through type, cast insulation, indoor device used for current and energy measurement and relay protection in 20kV AC systems.

Introduction to LFZJD-20 Current Transformer

LFZJD-20 current transformer

[20KV current transformer]LQZB-20 type current transformer

2026-6-16 11:30:36

LQZB-20 current transformer is a coil type, cast insulation, indoor device, used for current and energy measurement and relay protection in 20kV AC systems.

Introduction to LQZB-20 Current Transformer

LQZB-20 type current transformer

[20KV current transformer]LZZB8-20 series high-voltage current transformer

2026-6-16 11:30:28

The LZZB8-20 series high-voltage current transformer is an epoxy resin cast insulation fully enclosed pillar type product, suitable for current and energy measurement and relay protection in power lines and equipment with a rated frequency of 50Hz or 60Hz and a rated voltage of 20kV and below. The product complies with the standards of IEC44-1:1996 and GB1208-1997 "Current Transformers".

Structure Introduction

The LZZB8-20 series high-voltage current transformer is a fully enclosed pillar structure with epoxy resin casting insulation, resistant to pollution and moisture, and suitable for installation in any position and direction. The single variable ratio primary winding is fixed. The dual ratio primary winding adopts series and parallel connection. Changing the wiring direction once can result in two current ratios. As shown in the diagram, the series connection is 100/5A, and the parallel connection is 200/5A.

Technical parameters of LZZB8-20 series high-voltage current transformer
1. Rated insulation level:
2. Rated secondary current:
3. The rated primary current, accuracy level combination, rated output, and dynamic thermal stability current are shown in the table

model	Rated primary current (A)	Accurate level combination	Rated output (VA)			Rated short-time thermal stable current (kA)	Rated dynamic stability Constant current (kA)
			zero point two	zero point five	10P10
LZZB8-20 Single variable ratio Single ratio	20~50	0.2/10P10 0.5/10P10 0.2/0.2/10P10 0.2/0.5 /10P10 0.2/10P10/10P10 0.5/10P10/10P10	fifteen	twenty ~ sixty	30~60	six	fifteen
	seventy-five					eleven	twenty-seven point five
	one hundred					fourteen	thirty-five
	one hundred and fifty					twenty-two point five	fifty-six
	two hundred		twenty			twenty-four	sixty
	300~600					forty-five	one hundred and twelve
	800~1250		thirty	thirty ~ sixty	40~60	sixty-three	one hundred and fifty
LZZB8-20 Dual transformation ratio Two ratio	2×20~2×50	0.2/10P10 0.5/10P10 0.2/0.2/10P10 0.2/0.5 /10P10 0.2/10P10/10P10 0.5/10P10/10P10	fifteen	twenty ~ sixty	30~60	6-12	15-30
	2×75					11-22	27.5-55
	2×100					14-28	35-70
	2×150					22.5-45	56-112
	2×200
	2×300~ 2×400		twenty			32-64	80-160
	2×600					45-90	112.5-225
	2×750

LZZB8-20 series high-voltage current transformer

[20KV current transformer]LMZD-20 High Voltage Current Transformer

2026-6-16 11:30:20

The LMZD-20 high-voltage current transformer is an epoxy resin cast insulated busbar product, suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 20kV and below, for energy metering, current measurement, and relay protection.

3�� Structure Introduction

The iron core of LMZD-20 high-voltage current transformer is circular, and the secondary winding is evenly wound around the circumference of the iron core, which is cast with epoxy resin mixture.

4�� Technical parameters of LMZD-20 high-voltage current transformer

1. Rated insulation level: 24/65/125 kV
2. Rated secondary current: 5A, 1A
3. The rated primary current, accuracy level combination, and rated output are shown in the table

model	Rated primary current (A)	Accurate level combination	Rated output (VA)				10P level accuracy Limit coefficient 10P
			zero point two	zero point five	10P	5P
LMZD-20	eight hundred	0.5/10P 10P/10P 0.5/0.5/10P 0.5/10P/10 P 10P/10P/10P		fifty	fifty		fifteen
	1000,1200			sixty	sixty
	1500,2000						twenty
	3000,4000						twenty-five
	6000,8000 10000,12000	0.5/10P 10P/10P					fifteen
LMZD1-20	3000,6000	0.2/5P 0.5/5P 5P/5P	thirty	thirty		thirty	twenty
	8000,10000
	twelve thousand
LMZD2-20	six thousand	0.2/0.5 0.5/0.5 0.5/10P 10P/10P	thirty	thirty	thirty		fifteen
	eight thousand
	ten thousand
	twelve thousand		fifty	fifty	fifty
LMZB-20	one thousand	0.2/5P 0.5/5P	thirty	fifty		thirty	twenty
	1500,2000		sixty	sixty		sixty
	3000,4000
	5000,6000
	10000,12000 fifteen thousand	0.2/0.2 0.2/0.5 0.5/0.5 0.2/5P 0.5/5P	fifty	fifty		fifty	twenty
LMZB2-20	seven thousand and five hundred	0.2/5P 0.5/5P 5P/5P	thirty	thirty		thirty	twenty

	one thousand
LMZ1-20	6000,8000	0.2/5P 0.5/5P	sixty	sixty		sixty	twenty
	ten thousand
	twelve thousand

LMZD-20 High Voltage Current Transformer

[20KV current transformer]LZZBJ1-24W1 type current transformer

2026-6-16 11:30:11

LZZBJ1-24W1 current transformer is suitable for precise electrical measurement and relay protection in power systems with an altitude of 1000m and below, a rated frequency of 50Hz, and a maximum operating voltage of 24kV and below.
Environmental temperature: The normal type is+40 ��~-15 ��.
Environmental humidity: The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%; The daily average saturated vapor pressure shall not exceed 2.2 × 10-3MPa, and the monthly average shall not exceed 1.8 × 10-3MPa.
Product type: Indoor.
Atmospheric conditions: There is no pollution or explosive medium in the installation site that seriously affects the insulation of the transformer.
The installation site has no severe vibrations or bumps.
Open circuit is not allowed during product operation, otherwise there is a high voltage hazard.
The temperature during transportation and storage ranges from+40 �� to -15 ��.

Technical parameters of LZZBJ1-24W1 current transformer
Rated insulation level: 24/65/125kV.
Rated secondary current: 5A and 1A.
Instrument security factor: 0.2S level FS �� 5; Level 0.2 and 0.5 FS �� 10.
Insulation and heat resistance grade: Grade E.
Secondary structure: two coils, three coils.
Dimensions and weight: length x width x height (340 x 220 x 330), weight 54kg.
The rated primary current value, rated secondary load, accurate limit coefficient, rated short-time current value, level combination, and weight are listed in the following table. Please consult with the manufacturer for special specification products.

current ratio	Rated secondary load (VA) COS ��=0.8					Rated short-time thermal current (KA/1S)	Rated dynamic stability current (KA)
	0.2S level	Level 0.2	Level 0.5	5P ,10P	Accuracy limit Value coefficient
20/5	ten	ten	ten	fifteen	ten	six	fifteen
30/5						nine	twenty-two point five
40/5						twelve	thirty
50/5						fifteen	thirty-seven point five
75/5						twenty-one	fifty-two point five
100/5						thirty-one point five	eighty
150/5
200/5
300/5	ten	ten	ten	fifteen	fifteen	sixty-three	one hundred and thirty
400/5	fifteen	fifteen	fifteen	twenty
500/5
600/5
800/5				thirty
1000/5
1200/5
1500/5
2000/5						one hundred and sixty	eighty
20/1		ten	ten	fifteen	ten	six	fifteen
30/1						nine	twenty-two point five
40/1						twelve	thirty
50/1						fifteen	thirty-seven point five
75/1						twenty-one	fifty-two point five
100/1						thirty-one point five	eighty
150/1
200/1
300/1		ten	ten	fifteen	fifteen	sixty-three	one hundred and thirty
400/1		fifteen	fifteen	twenty	fifteen
500/1
600/1
800/1
1000/1
1200/1
1500/1
2000/1						one hundred and sixty	eighty

LZZBJ1-24W1 current transformer

[20KV current transformer]LZZBJ9-20/180B/3 series current transformers

2026-6-16 11:30:03

LZZBJ9-20/180B/3 series current transformer

[20KV current transformer]LZZBJ9-24/180B/2S type current transformer

2026-6-16 11:29:54

LZZBJ9-24/180B/2S type current transformer

[20KV current transformer]LZZBJ-24/220b/4s type current transformer

2026-6-16 11:29:46

LZZBJ-24/220b/4s current transformer

[20KV current transformer]LDZJ-20 series current transformers

2026-6-16 11:29:37

LDZJ-20 series current transformer

[20KV current transformer]LZZBJ9-24/180B/4S type current transformer

2026-6-16 11:29:29

LZZBJ9-24/180B/4S type current transformer

[20KV current transformer]LZZBJ18-20/225f/2,LZZBJ18-20,225f/4 type current transformer

2026-6-16 11:29:21

LZZBJ18-20/225f/2 LZZBJ18-20, 225f/4 current transformers

[20KV current transformer]LDZJ9-20 type current transformer

2026-6-16 11:29:12

LDZJ9-20 current transformer

[20KV current transformer]FCT-20R type current transformer

2026-6-16 11:29:04

The FCT-20R current transformer is an indoor product with cast insulation, used for measuring and protecting current and electrical energy in AC lines with a rated voltage of 11.5kV and below and a rated frequency of 50Hz or 60Hz.

[20KV current transformer]LMZ1-20,LMZD1-20,LMZD2-20 series current transformers

2026-6-16 11:28:54

Technical parameters of LMZ1-20, LMZD1-20, LMZD2-20 series current transformers

The product performance complies with IEC standards and GB1208-1997 "Current Transformers"
Rated insulation level: 23/65/125kV
Load power factor: cos ��=0.8 (lag)
Rated frequency: 50Hz
Rated secondary current: 5A

The main technical parameters of LMZ1-20, LMZD1-20, LMZD2-20 series current transformers are shown in the table

Appearance and installation dimensions

LMZ1-20, LMZD1-20, LMZD2-20 series current transformers

[20KV current transformer]LMZB-24(LMZB-20) type current transformer

2026-6-16 11:28:46

The LMZB-24 (LMZB-20) current transformer is an epoxy resin cast insulation, busbar type, indoor type product. Suitable for current and energy measurement and relay protection in power systems with AC 50Hz and rated voltage of 20KV and below.

rated voltage Flow ratio (A)	hierarchical combination	Accuracy level and rated output		Protection level
		zero point two	zero point five	Rated output Out (VA)	Accuracy level and precision Limit coefficient
1500/5	0.2/10P 0.5/10P 0.2/5P 0.5/5P	sixty	sixty	sixty	10P15 5P15
2000/5
3000/5
4000/5
5000/5
6000/5

LMZB-24 (LMZB-20) current transformer

[Combination type transformer]JLSZV-12WG type combination transformer

2026-6-14 15:00:11

JLSZV-12WG type combination transformer

[Combination type transformer]JLSZV5-10W series high-voltage current voltage combination transformer

2026-6-14 11:21:40

JLSZV5-10W series high-voltage current voltage combination transformer

[Combination type transformer]JLSZW-6 outdoor dry-type combination transformer

2026-6-14 11:06:07

JLSZW-6 outdoor dry-type combination transformer

1. Rated voltage: 6kV
2. Accuracy level: 0.5 and 0.2 levels, 0.5S and 0.2S levels;

[Combination type transformer]LGXQ type photoelectric current voltage combination transformer

2026-6-14 10:44:43

LGXQ type photoelectric current voltage combination transformer

[Combination type transformer]Electronic combination transformer

2026-6-14 10:44:32

The JLSGB electronic current voltage combination transformer is an outdoor device designed specifically for 35kV~220kV power systems.
Suitable for power systems with a rated frequency of 50Hz (or 60Hz) and a rated voltage of 35kV~220kV, providing current and voltage in the primary system for metering and relay protection.
reference standard
GB/T 20840.7 "Transformers - Part 7: Electronic Voltage Transformers"
GB/T 20840.8 "Transformers - Part 8: Electronic Current Transformers"
GB/T 1208 "Current Transformers"

Introduction to the Structure of JLSGB-35~220kV Electronic Combination Transformer
The main insulation adopts the LGB type high-voltage current transformer, and the outer insulation is a silicone rubber outer sheath and umbrella skirt. It is small in size, light in weight, easy to operate and maintain, anti pollution flash, fireproof, and explosion-proof.
The secondary part adopts an iron core coil type low-power current transformer winding, which is connected in series with a "terminal screen current and voltage forming circuit" in the capacitor core grounding (terminal screen) circuit. The analog-to-digital conversion device consists of an analog-to-digital conversion circuit, a digital optical conversion circuit, a merging unit, and a DC power supply. The voltage forming circuit outputs an analog voltage, which is converted into data transmitted in the form of optical signals.

Technical parameters of JLSGB-35~220kV electronic combination transformer
Rated voltage: 35kV, 66kV, 110kV, 220kV
Rated primary current: 50-3000A
Measurement accuracy: 0.2S
Protection level accuracy: 3P (voltage), 5P, 5TPE (current), 6P (voltage)
The conversion of current and voltage shall use 2D41H (decimal 11585) rated input voltage ± 5V analog-to-digital conversion circuit uniformly

[Combination type transformer]JLSZ8-10GY Outdoor high-voltage electric energy metering box

2026-6-14 10:31:50

This type of voltage and current combination transformer (also known as an energy metering box) is used for measuring active and reactive energy in AC 50Hz, rated voltage 10kV three-phase power lines. Suitable for outdoor substations in rural areas, as well as small substations and distribution stations in industrial enterprises. This product can replace the JLS-10 oil immersed energy metering box.

Structural characteristics:
This type of voltage and current combination transformer (also known as an energy metering box) is used for measuring active and reactive energy in AC 50Hz, rated voltage 10kV three-phase power lines. Suitable for outdoor substations in rural areas, as well as small substations and distribution stations in industrial enterprises. This product can replace the JLS-10 oil immersed energy metering box.

Technical parameters:
Pollution level: Level IV;
This type of combination transformer is composed of a single-phase voltage transformer and a single-phase current transformer combined into three phases, and the voltage transformer is wired with V/V-12;
This type of combination transformer meets the requirements of GB1208 "Current Transformers", GB1207 "Electromagnetic Voltage Transformers", and GB17201 "Combination Transformers";
The rated voltage ratio of the voltage transformer is 10000/100 (V), and the rated secondary output is 0.2 level 15VA;
Load power factor COS ��=0.8 (lag);
The safety factor FS of the current transformer instrument is �� 10;
Environmental temperature: between -30 �� and 40 ��. The daily average temperature does not exceed 30 ��;
Altitude: �� 4000m;

The technical parameters of JLSZ8-10GY outdoor high-voltage electric energy metering box are shown in the following table:

JLSZ8-10GY Outdoor High Voltage Electric Energy Metering Box Appearance and Installation Dimensions:

JLSZ8-10GY Outdoor High Voltage Electric Energy Metering Box

[Combination type transformer]JLSZY-35W Combination Transformer

2026-6-14 10:11:29

The JLSZY-35W combined transformer (also known as an electric energy metering box) is used for measuring active and reactive energy in three-phase power lines with AC 50Hz and rated voltage of 35kV. Suitable for outdoor substations in rural areas, as well as small substations and distribution stations in industrial enterprises. This product can replace the JLS-35 oil immersed energy metering box.

Structural characteristics:
This type of combination transformer is an outdoor epoxy resin cast, fully enclosed, pillar type structure. Due to the use of outdoor epoxy resin casting, the product has the characteristics of arc resistance, UV resistance, aging resistance, long service life, and maintenance free. This product consists of three single-phase grounded voltage transformers connected in a "Y" shape. Two current transformers are connected in series on phases A and C, and the secondary winding of the current transformers has taps to obtain different current ratios.
The secondary outlet is led out through a metal hose, which is easy to wire, safe and reliable, and can achieve anti-theft measures. There are four mounting holes on the base channel steel for installation.

Technical parameters of JLSZY-35W combined transformer:
Pollution level: Level IV;
This type of combination transformer consists of three single-phase grounded voltage transformers and two single-phase current transformers combined into three phases, with Y/Y wiring for the voltage transformers;
This type of combination transformer meets the requirements of GB1208 "Current Transformers", GB1207 "Electromagnetic Voltage Transformers", and GB17201 "Combination Transformers";
The rated voltage ratio of the voltage transformer is 35000/100 (V), and the rated secondary output is 0.2 level 30VA;
Load power factor: COS ��=0.8 (lag)
Security factor of current transformer instrument: FS �� 10;
Environmental temperature: between -30 �� and 40 ��. The daily average temperature does not exceed 30 ��;
Altitude: �� 4000m;

Technical parameters of JLSZY-35W combined transformer

JLSZY-35W Combination Transformer

[Combination type transformer]JLSZV-10B type combination transformer

2026-6-14 10:11:04

JLSZV-10B type combination transformer

[Combination type transformer]JLSZV-6B type combination transformer

2026-6-14 10:10:55

JLSZV-6B type combination transformer

[Combination type transformer]JLSZV-3B type combination transformer

2026-6-14 10:10:47

JLSZV-3B type combination transformer

[Combination type transformer]JLSZVW7-35 outdoor dry-type three-phase combination transformer

2026-6-13 21:20:54

JLSZVW7-35 Outdoor Dry type Three phase Combination Transformer

[Combination type transformer]JLSZVW8-10G type combined transformer for anti-theft electricity metering

2026-6-13 21:20:45

JLSZVW8-10G type combined transformer for anti-theft electricity metering

[Combination type transformer]JLSZVW7-10 outdoor dry-type three-phase combination transformer

2026-6-13 21:20:36

JLSZVW7-10 Outdoor Dry type Three phase Combination Transformer

[Combination type transformer]JLSZ5-10 Combination Transformer

2026-6-13 21:12:25

The JLSZ5-10 combination transformer (hereinafter referred to as the combination transformer) is suitable for measuring active and reactive energy in outdoor power systems with a frequency of 50Hz and a voltage of 10kV.
Installation location: Outdoor.
Environmental temperature: up to 40 ��; Minimum -25 ��; The daily average temperature cannot exceed 30 ��.
Altitude: not exceeding 1000m.
Atmospheric conditions: There is no severe pollution in the atmosphere.
The product implementation standard is GB17201 "Combination Transformer".

[Combination type transformer]JLDZ-6R type voltage transformer

2026-6-13 19:40:11

JLDZ-10,6R Voltage Transformer

[Combination type transformer]YFJLSZ-6,10 Prepaid combination transformer

2026-6-13 19:37:50

YFJLSZ-6�� 10 prepaid combination transformers are suitable for pre paid metering and protection in branch and dedicated transformers of rated frequency 50HZ and rated voltage 6-10KV power systems. They are equipped with superior permanent magnet vacuum circuit breakers, which can cut off overload currents (adjustable) and short-circuit currents of 20KA, effectively protecting electrical equipment and completely eliminating the problem of electricity bill collection. The dry-type maintenance free, metering, and protection separate magnetic circuits do not interfere with each other, and the metering accuracy reaches 0.2S level. The current transformation ratio can be selected, and the dual transformation ratio can be used to expand the scope of use. Small metering and large protection make the product more superior, with strong anti-theft ability. The use of aviation plug wiring makes equipment installation easier, and the lead sealing is tight. And it can be sealed with lead. The product has strong integration, reasonable structure, and superior three proof performance.

YFJLSZ-6, Technical parameters of 10 prepaid combination transformers:

Rated frequency: 50HZ
Rated primary current: 5-600A
Rated secondary current: 5A
Rated secondary voltage: 100V
Circuit breaker switch power supply voltage: 90V

YFJLSZ-6�� 10 prepaid combination transformer

[Combination type transformer]JLSZV-35W outdoor three-phase three wire combination transformer

2026-6-13 19:27:44

JLSZV-35W outdoor three-phase three wire combination transformer

[Combination type transformer]JLDZ8-10 outdoor winding injection type combination transformer

2026-6-13 19:27:35

The JLDZ8-10 outdoor winding injection type combination transformer adopts an epoxy resin casting fully enclosed structure, which is maintenance free,
Characteristics of all operating conditions. Voltage transformers have overvoltage resistance and are designed with low magnetic flux density. Current transformers have high dynamic and thermal stability. This type of combination transformer FDK4-12/D400-16 electromagnetic AC high-voltage automatic sectionalizer is used in conjunction with it.

Technical parameters of JLDZ8-10 outdoor winding injection type combination transformer
Voltage Transformer:
(1) Electrical circuit: (see Figure 1)
(2) Accuracy level:

Current transformer:
(1) Electrical circuit diagram: (see Figure 1)
(2) Transformation ratio: 400A/16V
(3) Accuracy:
a. Linearity less than 2%
b. Accuracy better than ± 3%
c. The asymmetry between phase A and phase B is less than 1%
(4) Dynamic and thermal stable current:
Thermal stability current: 16KA/2S
Dynamic stable current: 40KA/0.3S
Rated insulation level: 12/42/75KV
Installation, maintenance, and precautions
The installation base plate of this product is welded with channel steel, and the surface is hot-dip galvanized. There are four straight installation holes on the base plate, and users can directly fix the base plate on the metal component. There are two lifting rings on the base plate for easy lifting.
The secondary part of this product is connected to the user equipment control cabinet using an outdoor waterproof aviation plug, making installation very convenient.
The following points should be noted during the use of this product:
�� Short circuits are strictly prohibited at the secondary terminals of voltage transformers.
�� To avoid the impact of external forces on high-voltage insulators, when the insulation surface is damaged, the insulation capacity and internal abnormalities should be checked in a timely manner.
�� The product should be stored in a dry, non corrosive gas environment.

JLDZ8-10 outdoor winding injection type combination transformer

[Combination type transformer]JSZV1-10W dry-type combined voltage transformer

2026-6-13 19:23:45

The JSZV1-10W dry-type combined voltage transformer is an epoxy resin cast fully enclosed structure used for voltage and energy measurement and relay protection in power systems with a rated frequency of 50HZ and a rated voltage of 10KV and below where the neutral point is not effectively grounded. This transformer is a newly developed V-shaped wiring voltage transformer with fuse protection for the primary winding. It has the characteristics of large creepage distance, low magnetic density, and strong anti resonance ability.

2�� Technical parameters of JSZV1-10W dry-type combined voltage transformer

Rated voltage ratio (V)	accuracy level	Rated output (VA) Cos=0.8 (lag)	Maximum output (VA)	Rated insulation level (KV)	Fuse model and rated current	Minimum breaking current of fuse
1000/100	zero point two zero point five	thirty eighty	eight hundred	12/42/75	XRNP��-12 0.3A	0.9A
10000/220
10000/100/100 10000/100/220	0.2/0.5	20/60

Note: If there are special requirements, they can be determined after consultation with our factory.

3�� Appearance and installation dimensions

JSZV1-10W dry-type combined voltage transformer

[Combination type transformer]JDZ8-10C3 series combination transformer

2026-6-13 19:12:47

JDZ8-10C3 series combination transformer

[Combination type transformer]LZZBJ8-10C3 series combination transformer

2026-6-13 19:12:38

LZZBJ8-10C3 series combination transformer

[Combination type transformer]ZJ8-10R series combination transformer

2026-6-13 19:12:29

ZJ8-10R series combination transformer

[Combination type transformer]JLSZV6-12W series combination transformer

2026-6-13 19:12:21

JLSZV6-12W series combination transformer

[Combination type transformer]JLSZV-10W series combination transformer

2026-6-13 19:12:11

JLSZV-10W series combination transformer

[Combination type transformer]JLSZV-10 series combination transformer

2026-6-13 19:12:03

JLSZV-10 series combination transformer

[Combination type transformer]JLDZ-10R series combination transformer

2026-6-13 19:11:54

1�� Overview
The JLDZ-10R combination transformer is a fully enclosed structure with epoxy resin casting insulation, suitable for measuring current, voltage, and energy in indoor power systems with a rated voltage of 6 kV, 10 kV, and below, and for relay protection.

3�� Structure Introduction
The JLDZ-10R series combination transformer has the characteristics of small size, beautiful appearance, and excellent insulation performance. In addition, a high-voltage fuse is added at the connection between the primary winding of the voltage transformer and the primary winding of the current transformer, which has self-protection and other features.

4�� Technical parameters
1. Current section

rated current ratio ��A��	Accurate level combination	rated output ��VA��	Rated short-time thermal current (kA)	Rated dynamic stability current (kA)	Rated insulation level (kV)
10-200/5	0.2S zero point two 0.5S zero point five 0.2S/0.5	ten ten ten fifteen 10/15	100I1n	250I1n	12/42/75
300/5			thirty	seventy-five
400-1000/5			sixty-three	one hundred and thirty

2. Voltage section

model	Rated voltage ratio (kV)	Accurate level combination	rated output (VA)	Extreme output (VA)	Rated insulation level ��kV��
JLDZ-6R(G)	6/0.1	zero point two zero point five	thirty fifty	five hundred	7.2/32/60
JLDZ-10R(G)	10/0.1	zero point two zero point five	thirty fifty	five hundred	12/42/75
JLDZ-10R(G)	10/0.1/0.1	0.2/0.5	15/20	two hundred	12/42/75
JLDZ-6R(G)	6/��3/0.1/��3/0.1/3	0.2/6P 0.5/6P 1/6P	20/50 50/50 90/50	four hundred	7.2/32/60
JLDZ-10R(G)	10/��3/0.1/��3/0.1/3	0.2/6P 0.5/6P 1/6P	20/50 50/50 90/50	four hundred	12/42/75

5�� Appearance and installation dimensions

JLDZ-10R series combination transformer

[Combination type transformer]JLS(J)8-10GYW1 series combination transformer

2026-6-13 19:09:16

JLS (J) 8-10GYW1 series combination transformer

[Combination type transformer]JLS(J)7-10GYW1 series combination transformer

2026-6-13 19:09:08

JLS (J) 7-10GYW1 series combination transformer

[Combination type transformer]JLSZVR6-10 series combination transformer

2026-6-13 18:59:33

JLSZVR6-10 series combination transformer

[Combination type transformer]JLSZVK-3,6,10 series combination transformer

2026-6-13 18:59:25

JLSZVK-3�� 6. The 10 series combination transformer is an outdoor dry-type transformer suitable for measuring voltage, current, electrical energy, and power in AC 10kV, 50 (60) Hz power systems.
JLSZVK-3�� 6. The 10 series combination transformer adopts oil-free and maintenance free design, and has the advantages of high measurement accuracy, good insulation performance, anti-theft, and light weight.
JLSZVK-3�� 6. The 10 series combination transformer consists of a voltage transformer and a current transformer connected through V/V wiring to form a three-phase device.

JLSZVK-3, Introduction to the Structure of 6,10 Series Combination Transformers
1. The primary and secondary coils of the current transformer are in a chain structure, and the measuring grade iron core is made of ultrafine crystalline alloy. The secondary wires are uniformly wound on the iron core. The primary coil is made of high-quality soft copper strip or glass wire enameled wire.
2. The iron core of the voltage transformer adopts a ring shape, with secondary winding and primary winding sleeved on the core column. The secondary winding is wound on an insulating cylinder, and the outermost layers of the first and last sections of the primary winding are equipped with electrostatic screens. Both windings are multi-layer cylindrical, with the primary winding wrapped around the secondary winding and insulation left between the windings.
3. The current and voltage transformers are installed and fixed on the component board inside the box, which is connected to the cover plate and can be lifted out of the oil tank for maintenance.
4. The secondary terminal is equipped with lead sealing screws to prevent electricity theft.
3�� Technical data (if you want to order product technical data beyond the following range, please consult with me to determine)
1. The product performance complies with IEC standards and GB17201-1997 'Combination Transformer';
2. Rated insulation level: 12/42/75kV;
3. Rated frequency: 50/60Hz;
4. Allow operation at 120% rated current and voltage;
5. Load power factor: COS ��=0.8 (lag);
6. Rated secondary current: 5A
7. The rated output and dynamic thermal stability current can be found on the product nameplate.

4�� Scope of application (if you want to order a product, please consult with me to determine if the scope of application exceeds the following)
1. Equipment type: outdoor;
2. The altitude of the installation site shall not exceed 1000m;
3. Environmental temperature: -40 �� -+40 ��;
4. There is no serious pollution in the atmosphere that affects the insulation performance of transformers

JLSZVK-3, 6,10 series combination transformer

[Combination type transformer]JLSJV1-10 series oil immersed combination transformer

2026-6-13 18:59:16

The JLSJV1-10 series oil immersed combination transformer is suitable for measuring voltage, current, electrical energy, and power in AC 10kV, 50 (60) Hz power systems.
This product has the advantages of high measurement accuracy, good insulation performance, anti-theft, good leakage effect, and light weight. It is an ideal energy metering device for the current power supply system.
This product consists of a three-phase device composed of voltage transformers and current transformers connected by V/V.

Structure Introduction
1. The current transformer adopts a secondary coil wound on an amorphous alloy iron core, cast and molded with epoxy resin. After the primary coil is wound through the core, it is fastened to the high-voltage ceramic through an insulation sheath.
2. The high-voltage coil of the voltage transformer is wound on a reinforced nylon skeleton that is formed in one go, avoiding gap creepage, uniform electric field, low dielectric loss, high insulation resistance, and high withstand voltage strength, greatly improving the reliability of the product.
3. The current and voltage transformers are installed and fixed on the component board inside the box, which is connected to the cover plate and can be lifted out of the oil tank for maintenance.
4. The fuel tank is rectangular in shape, with an oil dipstick installed on the side of the tank. The tank contains transformer oil and adopts vacuum oil filtration and vacuum oil injection technology.
5. The secondary terminal is equipped with lead sealing screws to prevent electricity theft.
6. The box cover is equipped with a moisture absorber. Please install the moisture absorber when it is put into operation.

Technical data (if you want to order product technical data beyond the following range, please consult with me to determine)

1. The product performance complies with IEC standards and GB17201-1997 'Combination Transformer';
2. Rated insulation level: 12/42/75kV;
3. Rated frequency: 50/60Hz;
4. Allow operation at 120% rated current and voltage;
5. Load power factor: COS ��=0.8 (lag);
6. Rated secondary current: 5A
7. The rated output and dynamic thermal stability current can be found on the product nameplate.

The applicable scope of JLSJV1-10 series oil immersed combination transformer (if you want to order a product with an applicable scope beyond the following range, please consult with me to determine)
1. Equipment type: outdoor;
2. The altitude of the installation site shall not exceed 1000m;
3. Environmental temperature: -25 to+40 ��;
4. There is no pollution, corrosive or explosive medium in the atmosphere that seriously affects the insulation performance of transformers

JLSJV1-10 series oil immersed combination transformer

[Combination type transformer]JLSZVW1-10 series combination transformer

2026-6-13 18:59:07

The JLSZVW1-10 combination transformer is a three-phase integral casting outdoor product. Suitable for measuring voltage, current, electrical energy, and power in AC 50-60Hz 10kV power systems where the neutral point is not directly grounded.
The JLSZVW1-10 series combination transformer adopts single components and is composed of a three-phase device through V/V wiring.
This series of products are fully enclosed, all working condition, and maintenance free products made by one-time casting of outdoor epoxy resin imported from Switzerland. Strong weather resistance and stain resistance, only need to regularly wipe the surface dust. The surface creepage distance is large, suitable for use in high temperature and high humidity areas.
This series of products has strong short-circuit resistance and can withstand large dynamic and thermal stable currents. Considering the long distance from the substation metering point to the control room and the high secondary impedance, this series of products has increased the secondary capacity. And it can meet the requirements of the substation for oil-free transformers, high dynamic and thermal stability, large capacity, and complex transformation ratio.
This series of products has strong anti electricity theft function. The secondary junction boxes of the transformers are all equipped with lead sealed screws to prevent unauthorized disassembly of the secondary junction boxes and electricity theft. The secondary side lead out requires the use of armored cables. In order to prevent electricity thieves from changing the nameplate and stealing electricity, the product has a current transformation ratio cast on the body of the current transformer at the factory, which is convenient for meter readers to verify.

Structure Introduction
1. The PT core of JLSZVW1-10 combination transformer adopts a ring type, with secondary winding and primary winding sleeved on the core column. The secondary winding is wound on an insulating cylinder, and the outermost layers of the first and last sections of the primary winding are equipped with electrostatic screens. Both windings are multi-layer cylindrical, with the primary winding wrapped around the secondary winding and insulation left between the windings.
The primary and secondary coils of the current transformer are in a chain structure. The iron core is made of ultrafine crystalline alloy, and the secondary coil is uniformly wound on the iron core. The primary coil is made of high-quality soft copper strip or glass enameled wire.
2. The casting body is fixed to the base bracket with bolts. The secondary junction box has an outlet at the bottom, and a nameplate is riveted on the junction box cover. There are four screw holes on the bracket for users to install and use. There is a dedicated grounding bolt on the bracket.

Technical data (if you want to order product technical data beyond the following range, please consult with me to determine)
1. The product performance complies with IEC standards and GB17201-1997 'Combination Transformer';
2. Rated insulation level: 12/42/75kV;
3. Rated frequency: 50/60Hz;
4. Allow operation at 120% rated current and voltage;
5. Load power factor: COS ��=0.8 (lag);
6. Rated secondary current: 5A
7. The rated output and dynamic thermal stability current can be found on the product nameplate.

Scope of application (if you want to order a product, please consult with me to determine if the scope of application exceeds the following)
1. Equipment type: outdoor;
2. The altitude of the installation site shall not exceed 1000m;
3. Environmental temperature: -40 to+40 ��;
4. There is no pollution, corrosive or explosive medium in the atmosphere that seriously affects the insulation performance of transformers.

JLSZVW1-10 series combination transformer

[Combination type transformer]JLSZVW2-10 type combination transformer

2026-6-13 18:58:41

The JLSZVW2-10 combination transformer is a three-phase integral casting outdoor product. Suitable for measuring voltage, current, electrical energy, and power in AC 50-60Hz 10kV power systems where the neutral point is not directly grounded.
This series of products adopts single components and is composed of three-phase devices through V/V wiring.
This series of products are fully enclosed, all working condition, and maintenance free products made by one-time casting of outdoor epoxy resin imported from Switzerland. Strong weather resistance and stain resistance, only need to regularly wipe the surface dust. The surface creepage distance is large, suitable for use in high temperature and high humidity areas.
This series of products has strong short-circuit resistance and can withstand large dynamic and thermal stable currents. Considering the long distance from the substation metering point to the control room and the high secondary impedance, this series of products has increased the secondary capacity. And it can meet the requirements of the substation for oil-free transformers, high dynamic and thermal stability, large capacity, and complex transformation ratio.
This series of products has strong anti electricity theft function. The secondary junction boxes of the transformers are all equipped with lead sealed screws to prevent unauthorized disassembly of the secondary junction boxes and electricity theft. The secondary side lead out requires the use of armored cables. In order to prevent electricity thieves from changing the nameplate and stealing electricity, the product has a current transformation ratio cast on the body of the current transformer at the factory, which is convenient for meter readers to verify.
2�� Structure Introduction
1. The PT core of JLSZVW2-10 combination transformer adopts a ring type, with secondary winding and primary winding sleeved on the core column. The secondary winding is wound on an insulating cylinder, and the outermost layers of the first and last sections of the primary winding are equipped with electrostatic screens. Both windings are multi-layer cylindrical, with the primary winding wrapped around the secondary winding and insulation left between the windings.
The primary and secondary coils of the current transformer are in a chain structure. The iron core is made of ultrafine crystalline alloy, and the secondary coil is uniformly wound on the iron core. The primary coil is made of high-quality soft copper strip or glass enameled wire.
2. The casting body is fixed to the base bracket with bolts. The secondary junction box has an outlet at the bottom, and a nameplate is riveted on the junction box cover. There are four screw holes on the bracket for users to install and use. There is a dedicated grounding bolt on the bracket.
3�� Technical data (if you want to order product technical data beyond the following range, please consult with me to determine)
1. The product performance complies with IEC standards and GB17201-1997 'Combination Transformer';
2. Rated insulation level: 12/42/75kV;
3. Rated frequency: 50/60Hz;
4. Allow operation at 120% rated current and voltage;
5. Load power factor: COS ��=0.8 (lag);
6. Rated secondary current: 5A
7. The rated output and dynamic thermal stability current can be found on the product nameplate.
4�� Scope of application (if you want to order a product, please consult with me to determine if the scope of application exceeds the following)
1. Equipment type: outdoor;
2. The altitude of the installation site shall not exceed 1000m;
3. Environmental temperature: -40 to+40 ��;
4. There is no pollution, corrosive or explosive medium in the atmosphere that seriously affects the insulation performance of transformers.

JLSZVW2-10 type combination transformer

[Combination type transformer]LMZS1,2-0.66W series outdoor current combination transformer

2026-6-13 18:36:59

LMZS1,2-0.66W series outdoor current combination transformer

Comparison table of transformer capacity and matched transformers (for reference only)

LMZS1,2-0.66W series outdoor current combination transformer

[Combination type transformer]JLSZV series three-phase dry-type outdoor combination transformer

2026-6-13 18:25:05

JLSZV series three-phase dry-type outdoor combination transformer structure
Rated insulation level: 12/42/75kV
Minimum surface creepage distance
The parameters of the current transformer are shown in the table (rated secondary current is 5A or 2A, 1A)
Voltage transformer rated secondary voltage 100V, three-phase rated secondary output; Level 0.2: 3 × 20
Level 0.5: 30 × 50 (VA) Maximum output: 3 × 400 (VA)
Class 0.2:3×20(VA) Class 0.5:30×50(VA) Output terminal :3×400(VA)
Rated primary current, secondary output, and rated dynamic and thermal stability current:

Table 1

JLSZV series three-phase dry-type outdoor combination transformer appearance and installation dimensions

JLSZV series three-phase dry-type outdoor combination transformer

[Combination type transformer]JLSZ�� Series Outdoor Dry type Combination Transformer

2026-6-13 18:24:57

Main performance of JLSZ �� series outdoor dry-type combination transformer

1. Rated voltage: divided into 3 × 6kV, 3 × 10kV, 3 × 35kV
2. Rated transformation ratio: Voltage ratio: 6000/100V, 10000/100V, 35000/100V.
Current ratio: 1-1000/5A, and divided into single transformation ratio and dual transformation ratio.
The primary wiring P1 and P2 of the dual ratio measuring box have a high current ratio.
P1 and P3 are small current ratios.
3. Rated capacity: PT components are divided into three types: 15, 25, and 50VA.
CT components are divided into three types: 10, 25, and 30VA.
4. Accuracy levels: 0.5, 0.2, 0.5S, 0.2S.

Wiring diagram of JLSZ �� series outdoor dry-type combination transformer

JLSZ �� series outdoor dry-type combination transformer

[Combination type transformer]JLSZW-10 outdoor dry-type combination transformer

2026-6-13 18:24:48

JLSZW-10 outdoor dry-type combination transformer

1. Rated voltage: 10kV
2. Accuracy level: 0.5 and 0.2 levels, 0.5S and 0.2S levels;

Wiring diagramOutline drawing of electric meter box

JLSZW-10 outdoor dry-type combination transformer

[35KV current transformer]LCW1-35 Oil immersed current transformer

2026-6-11 19:53:24

The LCW1-35 current transformer is a multi turn, oil immersed, ceramic insulated outdoor device. Current transformers are used for measuring current, electrical energy, and relay protection in 35 kV, 50Hz AC systems.
The body of LCW1-35 oil immersed current transformer is installed in a porcelain box filled with transformer oil, and the coil is in the shape of an "8". The lower part of the "8" is wound around a secondary coil with a circular core made of strip silicon steel strip, and the upper half is the primary coil.
The body and porcelain box are both mounted on a circular base made of welded steel with four mounting holes. The upper part of the porcelain box is equipped with an oil storage tank, which is mechanically connected to the oil storage tank and the base. The joint is sealed with a well elastic oil resistant rubber gasket. An oil gauge is installed on the oil storage tank, and the oil height of the surrounding temperature is marked with red paint next to the oil gauge. A safety airway that can automatically open when the internal pressure of the transformer is too high is installed on the oil storage tank cover. A primary coil head is installed on the wall of the oil storage tank, and the mark P1 represents the head of the primary coil; P2 represents the front end, while the front end of P1 is insulated from the oil storage tank with a ceramic sleeve, and the front end of P2 is directly electrically connected to the oil storage tank.
The secondary coil heads are marked as S1 and S2. When the primary current flows from P1 to P2, the secondary current flows from S1 to S2 through the secondary load.
There is an oil drain plug installed under the base for draining the transformer oil from the transformer and for sampling purposes. There are four lifting rings and grounding bolts on the base for lifting transformers.

Technical parameters of LCW1-35 oil immersed current transformer

LCW1-35 oil immersed current transformer

[35KV current transformer]LVQB-35W2 High voltage current transformer

2026-6-11 19:52:44

Technical parameters of LVQB-35W2 high-voltage current transformer

Outline drawing

LVQB-35W2 High Voltage Current Transformer

[35KV current transformer]LVBT-35W2(W3) High voltage current transformer

2026-6-11 19:52:17

Technical parameters of LVBT-35W2 (W3) high-voltage current transformer

Overall dimensions

LVBT-35W2 (W3) High Voltage Current Transformer

[35KV current transformer]LB5-35(W2) High voltage current transformer

2026-6-11 19:51:51

Technical parameters of LB5-35 (W2) high-voltage current transformer

Overall dimensions

LB5-35 (W2) High Voltage Current Transformer

[35KV voltage transformer]JDZW-40.5R outdoor voltage transformer

2026-6-11 12:45:56

JDZW-40.5R Outdoor Voltage Transformer

[35KV voltage transformer]JD7-35 High Voltage Voltage Transformer

2026-6-11 12:45:48

JD7-35 High Voltage Voltage Transformer

[35KV voltage transformer]JDX7-35 single-phase high-voltage voltage transformer

2026-6-11 12:45:39

JDX7-35 single-phase high voltage transformer

[35KV voltage transformer]JZWX3-35KV outdoor voltage transformer

2026-6-11 12:45:30

JZWX3-35KV Outdoor Voltage Transformer

[35KV voltage transformer]JDZ11-35Q type indoor low magnetic density voltage transformer

2026-6-11 12:45:21

JDZ11-35Q Indoor Low Magnetic Density Voltage Transformer

[35KV voltage transformer]JDZX6-35RCQ Voltage Transformer

2026-6-11 12:45:12

JDZX6-35RCQ C-GIS Voltage Transformer

JDZX6-35RCQ1
JDZX6-35RCQ2
JDZX6-35RCQ3
JDZX6-35RCQ4

[35KV voltage transformer]UNZ35 type voltage transformer

2026-6-11 12:45:03

UNZ35 type voltage transformer

[35KV voltage transformer]UNE35 type voltage transformer

2026-6-11 12:44:55

UNE35 type voltage transformer

[35KV voltage transformer]JLS7-35W1 type voltage transformer

2026-6-11 12:44:47

JLS7-35W1 Voltage Transformer

[35KV voltage transformer]JDXN6-35T1 and JDXN6-35T2 voltage transformers

2026-6-11 12:44:37

The JDXN6-35T1 and JDXN6-35T2 series voltage transformers are suitable for voltage and energy measurement and relay protection in AC power systems with a rated voltage of 35kV and a rated frequency of 50Hz, where the neutral point is not effectively grounded.

[35KV voltage transformer]JDZX12-35 High Voltage Voltage Transformer

2026-6-11 12:44:29

JDZX12-35 High Voltage Voltage Transformer

[35KV voltage transformer]JDZXF16-35KV type voltage transformer

2026-6-11 12:44:20

JDZXF16-35KV Voltage Transformer

[35KV voltage transformer]LZZBJ9-40.5W1,W2 series indoor high-voltage voltage transformer

2026-6-11 12:44:12

LZZBJ9-40.5W1, W2 series indoor high-voltage voltage transformer

[35KV voltage transformer]JDZXF10-35 Indoor voltage transformer

2026-6-11 12:44:03

JDZXF10-35 Indoor Voltage Transformer

[35KV voltage transformer]JDZXF10-35C type indoor capacitive voltage transformer

2026-6-11 12:43:55

JDZXF10-35C Indoor Capacitive Voltage Transformer

[35KV voltage transformer]JDZX6-35QR Indoor Voltage Transformer with Fuse Protection

2026-6-11 12:43:47

JDZX6-35QR Indoor Voltage Transformer with Fuse Protection

[35KV voltage transformer]JDZX11-36,JDZX11-35D Low magnetic density voltage transformer for indoor handcart cabinet

2026-6-11 12:43:38

JDZX11-36, JDZX11-35D indoor handcart cabinet low magnetic density voltage transformer

[35KV voltage transformer]JDZX11-35Q type indoor low magnetic density voltage transformer

2026-6-11 12:43:30

JDZX11-35Q Indoor Low Magnetic Density Voltage Transformer