Shanghai Huabang Industrial Business Network - 27.5KV current 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