Shanghai Huabang Industrial Business Network - Discharge monitor

[Discharge monitor]JSM series lightning arrester monitor

2026-6-13 19:52:01

1�� Purpose and characteristics

The JSM series lightning arrester monitor is a device connected in series under the lightning arrester to record the number of lightning arrester actions and monitor the leakage current of the lightning arrester. Suitable for various types of zinc oxide lightning arresters with voltage levels of 500KV and below, using the same environmental conditions as the connected lightning arrester. The JSM series has made significant technological improvements, including the improvement of the leakage current warning device composed of light-emitting tubes, which is easy to observe at night. The counter is a digital counter or dual pointer counter, with clear counting indicators for easy observation. The leakage current indication is accurate, and the alarm, error prevention, and applicability are strong.

2�� Structure and performance
The JSM series lightning arrester monitor is mainly composed of heat-resistant glass shell, flange, sealing rubber gasket, bottom plate and nonlinear resistor, rectifier, capacitor, electromagnetic counter, current measurement circuit, electronic adjustment circuit, protection circuit, etc. The discharge of the lightning arrester is sampled by a nonlinear resistor, processed and indicated by an electromagnetic counter. The leakage of the lightning arrester is measured by a pointer ammeter through a current measurement circuit, with a measurement range of 0-5mA. When the leakage current approaches 2mA, the "alarm" indicator light changes from white to red and sends out an alarm indication.
The performance of the monitor complies with the JB/T 10492-2004 standard for lightning arrester monitors and the national GB 7676-1994 standard for pointer type electrical instruments.

Main parameter performance of lightning arrester monitor

model parameter	JSM
	one	two	three
	A	B	C
	5/400	10/600	10/800
Applicable power system rated voltage range (effective value) KV	6��35	10��220	10��500
Nominal discharge current 8/20us (peak) KA	five	ten	ten
Lower limit operating current 8/20us A	fifty	fifty	fifty
Residual voltage (peak) KV under nominal discharge current	��1500	��1500	��1200
Square wave current withstand capacity 2000us (peak) A	four hundred	six hundred	eight hundred
High current impulse withstand capacity 4/10us (peak) KA	fifty	fifty	fifty
Counting range (cycle)	one hundred	one hundred	one hundred
Product quality Kg	three	three	three
Remarks

Among them, 1, 2, and 3 are product type numbers, 1 is a 3mA single pointer, 2 is a 5mA single pointer, and 3 is a 5mA dual pointer. A. B and C are design numbers

[Discharge monitor]TBP-JC type overvoltage monitoring device

2026-6-13 19:42:14

Overview
TBP-JC overvoltage monitoring device is an intelligent recorder that uses a high-performance microprocessor as its core. It is a supporting product for various overvoltage protectors (lightning arresters), which realizes real-time recording, storage, and display of the three-phase and six overvoltage times of the lightning arrester. Thus achieving effective monitoring of the system.

The main functions and features of the product are as follows:
Record the number of overvoltage occurrences, time of occurrence, and order of occurrence for each phase;
Real time display of the number of actions of each phase overvoltage protector in phase separation;
Record results can be queried freely;
It has the function of indicating discharge at the current moment.

[Discharge monitor]JCQ-C5 type lightning arrester operation monitor

2026-6-13 19:41:38

Structure and Characteristics of JCQ-C5 Surge Arrester Operation Monitor

1.1 This type of monitor adopts a novel and unique overall structural design and an aluminum magnesium die-casting alloy shell, with a compact and sturdy structure, excellent sealing and shock resistance, stable and reliable operation, and easy transportation and installation;
1.2 Adopting a three digit (two digit or five digit) electromagnetic counter, it automatically returns to zero after reaching full capacity and works in a cyclic counting mode without the need for resetting;
1.3 The current measurement adopts a specially designed nonlinear scale milliampere meter, which has the advantages of clear reading, high resolution in low current areas, and vibration resistance; A specially designed milliampere meter is used to mark the leakage current operating area of the lightning arrester with colored scales, making it easy to determine the operating status of the lightning arrester;
1.4 Equipped with fault alarm, the lightning arrester can automatically issue an alarm signal when the leakage current exceeds the set value, and the signal mode is flashing to improve the warning capability;
The installation structure of this type of monitor is universal with JS-8 discharge counter and JCQ series monitors, making it easy to install and exchange.

[Discharge monitor]JCQ-C4 type lightning arrester operation monitor

2026-6-13 19:41:29

Structure and Characteristics of JCQ-C4 Monitor

1.1 Adopting a novel and unique overall structural design and aluminum magnesium die-casting alloy shell, the structure is compact and sturdy, with excellent sealing and shock resistance, stable and reliable operation, and easy transportation and installation;
1.2 Adopting a three digit electromagnetic counter, it automatically returns to zero after reaching full capacity and works in a cyclic counting mode without the need for resetting;
The JCQ-C4 lightning arrester operation monitor uses a specially designed milliampere meter for current measurement, which has clear readings and high resolution. A specially designed milliampere meter is used to mark the leakage current operating area of the lightning arrester with colored scales, making it easy to determine the operating status of the lightning arrester. Among them:
Green area: indicates that the measured leakage current is within the normal operating current range of the lightning arrester, and the lightning arrester is working normally.
Yellow area: indicates that the measured leakage current is not within the normal operating current range of the lightning arrester, and the system and lightning arrester need to be inspected and monitored;
Red area: indicates that the measured leakage current has exceeded the normal operating current range of the lightning arrester, and the lightning arrester may have malfunctioned; Timely maintenance or replacement is required (sometimes, the alarm signal light flashes red to sound an alarm);
1.5 This type of monitor ammeter can adopt different ranges to be suitable for various types of lightning arresters with different voltage levels of 35-500KV;
1.6 The installation structure of this type of monitor is universal with JS-8 discharge counter and JCQ series monitors, and is easy to install and interchangeable;
The JCQ-C4 lightning arrester operation monitor has undergone strict factory inspection and has excellent performance and reliable quality.

[Discharge monitor]JCQ-JC2 type lightning arrester operation monitor

2026-6-13 19:41:20

Structure and Characteristics of JCQ-JC2 Monitor

1.1 Adopting a novel and unique overall structural design, the structure is simple and reliable in operation; Adopting a stainless steel shell, the structure is sturdy, corrosion-resistant and shock resistant, making it easy to transport and install;
1.2 The monitor consists of a sampling circuit, a protection circuit rectifier circuit, a current measurement circuit, an action counting circuit, and an alarm circuit;
1.3 Adopting a three digit electromagnetic counter, it automatically returns to zero after reaching full capacity and works in a cyclic counting mode without the need for resetting;
1.4 The current measurement adopts a specially designed milliampere meter, which has the advantages of clear reading, high resolution, and vibration resistance; A specially designed milliampere meter is used to mark the leakage current operating area of the lightning arrester with colored scales, making it easy to determine the operating status of the lightning arrester;
1.5 The ammeter can adopt different ranges to be suitable for various types of lightning arresters with different voltage levels of 35-500KV;
1.6 The installation structure is universal with JS-8 discharge counter and JCQ series monitor, and is easy to install and interchangeable.

[Discharge monitor]JCQ-C6 Surge Arrester Operation Monitor

2026-6-13 19:27:08

JCQ-C6 lightning arrester operation monitor

[Discharge monitor]JCQ1 type lightning arrester operation monitor

2026-6-13 19:17:55

JCQ1 type operation monitor is a device connected in series under the lightning arrester, used to monitor the changes in the leakage current of the lightning arrester and the number of lightning arrester actions, and to determine whether the lightning arrester needs to be replaced based on the magnitude of the leakage current.

It has five specifications:

JCQ1-10/600 is suitable for voltage levels of 6-110kV.

JCQ1-10/800 is suitable for voltage levels of 110~220kV.

JCQ1-10/1000 is suitable for a voltage level of 350kV.

JCQ1-20/1500 and JCQ1-20/2000 are suitable for 500kV voltage levels.

Models with the suffix "B" are monitors with alarm outlets.

The JCQ1 series lightning arrester operation monitor is used in the same environmental conditions as the connected lightning arrester, with an altitude not exceeding 3000m and an ambient temperature of -40 ��~+40 ��. It is not suitable for gas with severe corrosion of metal and insulation parts, areas with severe pollution and severe vibration. If there are special requirements, they can be jointly negotiated and determined.

Structure and Performance

The JCQ1 operation monitor is mainly composed of nonlinear resistors, electromagnetic counters, milliammeters, relays, and some electronic components. Under normal operating voltage, the change in leakage current through the lightning arrester and monitor is measured by the milliampere meter in the monitor. When lightning waves, operation waves, or power frequency overvoltages flow through the lightning arrester and monitoring meter, the strong action current will be transferred from the leakage current measurement circuit to the counter circuit. The milliampere meter is protected, and the counter part uses the energy of the passing lightning waves, operation waves, or power frequency overvoltages to record the number of actions and trigger an alarm.

The monitor has three functions: continuous monitoring of changes in leakage current, number of actions, and alarm during operation. It has high sensitivity, accuracy, reliability, large current capacity, wide range of applicable voltage levels, clear and obvious display, lightweight and reasonable structure, beautiful and generous appearance, reliable sealing, and easy installation and use. It is especially suitable for use in ultra-high voltage, large capacity power systems, and areas with strong electricity, frequent lightning strikes, and frequent actions.

4�� Electrical parameters

type

number

Product Model

Main performance

JCQ1-10/600

JCQ1-10/800

JCQ1-10/1000

JCQ1-20/1500

JCQ1-20/2000

one

Rated voltage of the system kV r.m.s

6~110

110~220

three hundred and thirty

five hundred

two

Nominal discharge current 8/20 �� s kA

ten

twenty

three

Operating current range A

50~10000

50~20000

four

The nominal current residual voltage shall not exceed kA

two point five

five

2ms�� 20 power impulse current withstand capability A

six hundred

eight hundred

one thousand

one thousand and five hundred

two thousand

six

4/10��s�� Ability to withstand 2 large impulse currents A

sixty-five

one hundred

seven

Under normal leakage current, the monitor terminal voltage is not greater than V r.m.s

two hundred and fifty

eight

Overload capacity of power frequency leakage current

mA r.m.s

350~400 2s

nine

DC milliampere meter range mA

two

ten

Milliampere meter safety current setting value mA

one point six eight

eight

eleven

The maximum size is �� × H × L mm

170×185×227 (172×190×245)

twelve

Maximum weight kg

6.0 (6.4)

Installation

Refer to the external drawing for installation. The operation monitor is connected in series between the lightning arrester and the ground. During installation, first install the monitor with M10 × 40 bolts near the lightning arrester base for easy testing and observation. Connect the grounding busbar, and then connect the high-voltage output terminal with M10 × 30 bolts and busbar to the two �� 15 installation holes on the insulation base of the lightning arrester. The installed monitor should not have any obvious tilting phenomenon. At this point, record the number indicated by the counter or adjust it to zero to put it into operation. Record the leakage current value (milliampere meter reading) after the power grid is energized for future comparative analysis.

6�� User Notice

Before and after 1-2 years of operation, the monitor should undergo a simple on-site inspection, which includes:

(1) Measure the resistance value between the high-voltage output terminal of the monitor and the ground with a multimeter. When the battery voltage of the multimeter is sufficient, the monitor should be at several tens of K ��. There should be no short circuits or open circuits, otherwise the leakage current measurement function will fail.

(2) Using a simple method to detect the performance of the monitor's actions

Connect one 1000V shaker and two 600V 10 �� F capacitors in parallel.

Testing steps: First, rotate the shaking table to charge the capacitor. After the charging is stable, while maintaining the shaking table speed, disconnect the charging circuit. Then quickly discharge the fully charged capacitor to both ends of the monitor once. The counter should record once. If it can operate accurately and reliably for 10 consecutive tests, it is considered that the monitor has good performance. Otherwise, there may be problems and maintenance or replacement should be carried out.

2. If the pointer on the monitor does not point to zero and the user needs to reset it to zero, they can adjust it according to item (2) of Article 1, or use the existing number on the counter as the starting base for recording and accumulate the number of actions of the lightning arrester.

3. After the monitor is put into operation, record the reading of the milliampere meter for comparison and analysis when the monitor conducts regular inspections in the future (the surface condition of the lightning arrester is closely related to the leakage current, and attention should be paid to data analysis).

When removing the monitor from the circuit, the high-voltage end of the monitor should be reliably grounded with a wire first, and then the monitor should be removed. After the maintenance is completed, it can only be reinstalled after passing the inspection, and then the grounding wire can be removed. Violation of these regulations may pose a risk to the personal safety of operators.

5. During installation, please note that the lead tension of the high-voltage end of the monitor should not exceed 100N. The 6 M6 × 20 bolts on the bottom plate should not be loosened arbitrarily to avoid damaging the product seal.

6. If the user is unable to use the product due to poor manufacturing quality within two years from the date of shipment under the prescribed conditions, our factory is responsible for the "three guarantees".

JCQ1 type lightning arrester operation monitor

[Discharge monitor]YJ2 Series Metal Oxide Surge Arrester Monitor

2026-6-13 19:00:16

The YJ2 series metal oxide lightning arrester monitor (hereinafter referred to as the monitor) is suitable for online monitoring of metal oxide lightning arresters with a nominal discharge current not exceeding 20kA and a rated voltage not exceeding 500kV. It can perform full current testing and record the number of actions of metal oxide surge arresters in operation.

Conditions for using the monitor
Suitable for indoor and outdoor use;
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Resistant to solar radiation;
Altitude not exceeding 2000m;
The frequency of the power supply shall not be less than 48Hz and not greater than 62Hz.

Model Description
YJ2��£/£
�� - Square wave current A
�� - nominal discharge current kA
��-- Design Number
⒲ -- Metal oxide surge arrester monitor
characteristic
Reliable action, intuitive indication, stainless steel shell, beautiful appearance;
Compact in size and easy to install; No need for power supply, easy to use;
By selecting rear mounted equipment to form an automatic monitoring system, the operation status of the lightning arrester can be automatically tracked, and any abnormal situations can be simultaneously alerted, creating conditions for unmanned substations.

YJ2 series metal oxide lightning arrester monitor appearance, terminals, and installation dimensions

YJ2 series metal oxide lightning arrester monitor

[Discharge monitor]JCQF2 series lightning arrester monitor

2026-6-13 19:00:08

The JCQF2 lightning arrester monitor is a device that works in series below the lightning arrester to record the number of lightning arrester actions and monitor the leakage current of the lightning arrester. Suitable for various types of zinc oxide lightning arresters with voltage levels of 330KV and below, using the same environmental conditions as the connected lightning arrester. The JCQF2 series products are packaged in a stainless steel shell, mainly consisting of a stainless steel shell, insulating porcelain sleeve, sealing gasket, high-power zinc oxide valve plate, rectifier, double pointer electromagnetic counter, current measurement circuit, electronic alarm circuit, protection circuit, etc. The main features are that the appearance packaging adopts a fully corrosion-resistant metal or stainless steel anti-corrosion square structure, a large window, dual pointer hundred digit cyclic counting indication, prominent counting indication, accurate leakage current monitoring, overload protection with alarm indication, and the product is resistant to vibration to ensure its service life.

Under normal use, the number of actions of the lightning arrester is indicated by a dual pointer electromagnetic counter with counting and carrying functions. The counting indication is clear and eye-catching, and it automatically returns to zero when the hundred digit is full, continuing to cycle and accumulate counting work without resetting. The leakage current of the lightning arrester is directly reflected by the pointer ammeter through the current measurement circuit. The measurement indication range is 0-3 milliamps. When the leakage current approaches or exceeds the current alarm value set by the monitor, the alarm indicator light changes from white to red and sends out an alarm indication.

The performance indicators of the monitor comply with the national mechanical industry standards JB/T 2440-1991 "Discharge Counting Devices for Surge Arresters", JB/T 10492-2004 "Monitor for AC gapless Metal Oxide Surge Arresters", and GB/T7676.1-1998 "Pointer Electrical Instruments".

Technical parameters of JCQF2 series lightning arrester monitor

Product Model	JCQF2 10/800	JCQF2 10/1500	JCQF2 20/2000
performance metrics	JCQF2 10/800	JCQF2 10/1500	JCQF2 20/2000
Applicable power system rated voltage range (effective value)	330KV	500KV	500KV
Nominal counting current 8/20KA (peak)	10KA	10KA	20KA
Lower limit counting current 8/20A (peak)	50A	50A	50A
Residual voltage (peak value)	��1.5KV	��1.5KV	��1.5KV
Square wave impulse current 2000A (peak)	800A	1500A	2000A
Impulse high current 4/10KA (peak)	100KA	100KA	100KA
Current measurement range and indication error (ACA)	0��6mA±%5	0��6mA±%5	0��6mA±%5
Product weight	1.5kg	1.6kg	1.7kg

JCQF2 series lightning arrester monitor

[Discharge monitor]JSH series lightning arrester online monitor

2026-6-13 18:36:51

The JSH series online monitor (formerly known as lightning arrester leakage current and action recorder) is an online monitoring instrument for lightning arresters in AC high-voltage power systems. The instrument integrates a milliampere meter and a counter, and is connected in series in the grounding circuit of the lightning arrester. The milliampere meter in the monitor is used to monitor the peak leakage current through the lightning arrester under operating voltage, which can effectively detect whether the inside of the lightning arrester is damp or whether the internal components are abnormal; The counter records the number of actions of the lightning arrester under overvoltage.

The JSH-3 monitor has made significant technological improvements based on the JSH-2 model, including redesigning the pointer action counter and increasing the counter panel for easy remote observation; A leakage current warning device composed of light-emitting tubes has been added to more clearly alert patrol personnel to pay attention and observe at night. Reduced the external dimensions, improved the installation position, making the appearance more beautiful and the installation more convenient; An external measuring socket (optional) has been set up: making it easy to connect the external measuring instrument in series with the leakage current circuit. For example, introducing cables into the central control room for centralized monitoring; Or connect a resistive current measuring instrument to implement online monitoring of the lightning arrester without power outage.

[Discharge monitor]JCQ-C1 series lightning arrester monitor

2026-6-13 18:29:27

The JCQ-C1 lightning arrester monitor is a device that works in series below the lightning arrester to record the number of lightning arrester actions and monitor the leakage current of the lightning arrester. Suitable for various types of zinc oxide lightning arresters with voltage levels of 330KV and below, using the same environmental conditions as the connected lightning arrester. The JCQ-C1 series products are packaged in a transparent heat-resistant glass cover, mainly consisting of a high-temperature resistant glass cover, insulating porcelain sleeve, sealing gasket, high-power zinc oxide valve plate, rectifier, three digit digital electromagnetic counter, current measurement circuit, electronic alarm circuit, protection circuit, etc. Its features include digital thousand digit cyclic counting, prominent counting indication, accurate leakage current monitoring, alarm indication, and vibration resistance of the product.

Under normal use, the number of actions of the lightning arrester is indicated by a digital electromagnetic counter with counting and carrying functions. The counting indication is accurate, and it automatically returns to zero when the thousand digits are full, continuing to cycle and accumulate counting work without resetting. The leakage current of the lightning arrester is directly reflected by the pointer ammeter through the current measurement circuit. The measurement indication range is 0-3 milliamps. When the leakage current approaches or exceeds the current alarm value set by the monitor, the alarm indicator light changes from white to red and sends out an alarm indication.

The performance indicators of the monitor comply with the national mechanical industry standards JB/T 2440-1991 "Discharge Counting Devices for Surge Arresters", JB/T 10492-2004 "Monitor for AC gapless Metal Oxide Surge Arresters", and GB/T7676.1-1998 "Pointer Electrical Instruments"

Product Model	JCQ-C1 10/800	JCQ-C1 10/1200	JCQ-C1 10/1500
performance metrics	JCQ-C1 10/800	JCQ-C1 10/1200	JCQ-C1 10/1500
Applicable power system rated voltage range (effective value)	10��220KV	35��330KV	35��330KV
Nominal counting current 8/20KA (peak)	10KA	10KA	10KA
Lower limit counting current 8/20A (peak)	50A	50A	50A
Residual voltage (peak value)	��1.5KV	��1.5KV	��1.5KV
Square wave impulse current 2000A (peak)	800A	1200A	1200A
Impulse high current 4/10KA (peak)	100KA	100KA	100KA
Current measurement range and indication error (ACA)	AC 0��3mA±%5	AC 0��3mA±%5	AC 0��3mA±%5

JCQ-C1 series lightning arrester monitor

[Discharge monitor]JCQF2-C series lightning arrester monitor

2026-6-13 18:29:18

The JCQF2-C lightning arrester monitor is a device that works in series below the lightning arrester to record the number of lightning arrester actions and monitor the leakage current of the lightning arrester. Suitable for various types of zinc oxide lightning arresters with voltage levels of 330KV and below, using the same environmental conditions as the connected lightning arrester. The JCQF2-C series products are enclosed in a stainless steel shell and have an output alarm contact interface, which makes it easy to remotely monitor the condition of lightning arresters; It mainly consists of a stainless steel shell, insulated porcelain sleeve, sealing gasket, high-power zinc oxide valve plate, rectifier, double pointer electromagnetic counter, current measurement circuit and alarm circuit, protection circuit, etc. The main features are that the appearance packaging adopts a fully corrosion-resistant metal or stainless steel anti-corrosion square structure, a large window, dual pointer hundred digit cyclic counting indication, prominent counting indication, accurate leakage current monitoring, overload protection with alarm indication, and the product is resistant to vibration to ensure its service life.

Under normal use, the number of actions of the lightning arrester is indicated by a dual pointer electromagnetic counter with counting and carrying functions. The counting indication is clear and eye-catching, and it automatically returns to zero when the hundred digit is full, continuing to cycle and accumulate counting work without resetting. The leakage current of the lightning arrester is directly reflected by the pointer ammeter through the current measurement circuit. The measurement indication range is 0-3 milliamps. When the leakage current approaches or exceeds the current alarm value set by the monitor, the alarm indicator light changes from white to red and sends out an alarm indication.

The performance indicators of the monitor comply with the national mechanical industry standards JB/T 2440-1991 "Discharge Counting Devices for Surge Arresters", JB/T 10492-2004 "Monitor for AC gapless Metal Oxide Surge Arresters", and GB/T7676.1-1998 "Pointer Electrical Instruments".

Product Model	JCQF2-C-A	JCQF2-C-B
performance metrics	JCQF2-C-A	JCQF2-C-B
Applicable power system rated voltage range (effective value)	35��220KV	35��330KV
Nominal counting current 8/20KA (peak)	10KA	10KA
Lower limit counting current 8/20A (peak)	50A	50A
Residual voltage (peak value)	��1.5KV	��1.5KV
Square wave impulse current 2000A (peak)	800A	1200A
Impulse high current 4/10KA (peak)	65KA	100KA
Current measurement range and indication error (ACA)	AC 0��3mA±%5	AC 0��3mA±%5
Output alarm contact parameters	DC 28V/1A ��AC 115V/0.25A	DC 28V/1A ��AC 115V/0.25A
Product weight	1.5kg	1.6kg

JCQF2-C series lightning arrester monitor

[Discharge monitor]JCQF3 series lightning arrester monitor

2026-6-13 18:29:09

The JCQF3 lightning arrester monitor is a device that works in series below the lightning arrester to record the number of lightning arrester actions and monitor the leakage current of the lightning arrester. Suitable for various types of zinc oxide lightning arresters with voltage levels of 500KV and below, using the same environmental conditions as the connected lightning arrester. The JCQF3 series products are packaged in a stainless steel shell, mainly consisting of a stainless steel shell, insulating porcelain sleeve, sealing gasket, high-power zinc oxide valve plate, rectifier, double pointer electromagnetic counter, current measurement circuit and alarm circuit, protection circuit, etc. The main features are a large window, dual pointer hundred digit cyclic counting indication, prominent counting indication, accurate leakage current monitoring, overload protection with alarm indication, and vibration resistance of the product. The internal protection circuit uses thyristors for better protection performance.

Under normal use, the number of actions of the lightning arrester is indicated by a dual pointer electromagnetic counter with counting and carrying functions. The counting indication is clear and eye-catching, and it automatically returns to zero when the hundred digit is full, continuing to cycle and accumulate counting work without resetting. The leakage current (full current) of the lightning arrester is directly reflected by the pointer ammeter through the current measurement circuit. The measurement indication range is 0-3 milliamps. When the leakage current reaches or exceeds the protection value of the measurement circuit, the red and green indicator lights will flash and turn off, and the ammeter pointer will also swing and return to zero.

The performance indicators of the monitor comply with the national mechanical industry standards JB/T 2440-1991 "Discharge Counting Devices for Surge Arresters", JB/T 10492-2004 "Monitoring Devices for AC gapless Metal Oxide Surge Arresters", national GB/T7676.1-1998 "Pointer Electrical Instruments", and XC/JT7502-2000 "Technical Conditions for Surge Arrester Monitoring Devices".

Product Model	JCQF3 10/800	JCQF3 10/1500	JCQF3 20/2000
performance metrics	JCQF3 10/800	JCQF3 10/1500	JCQF3 20/2000
Applicable power system rated voltage range (effective value)	330KV	500KV	500KV
Nominal counting current 8/20KA (peak)	10KA	10KA	20KA
Lower limit counting current 8/20KA (peak)	50A	50A	50A
Residual voltage (peak value)	��1.5KV	��1.5KV	��1.5KV
Square wave impulse current 2000A (peak)	800A	1500A	2000A
Impulse high current 4/10KA (peak)	100KA	100KA	100KA
Current measurement range and indication error (ACA)	0��6mA±%5	0��6mA±%5	0��6mA±%5
Product weight	2.4kg	2.5kg	2.6kg

JCQF3 series lightning arrester monitor