As a new type of overvoltage protection device in power system, three-phase combined overvoltage protector has been widely used in 35kV and below power system to limit lightning overvoltage, vacuum circuit breaker operating overvoltage and various transient overvoltage that may occur in power system, which can effectively protect the insulation of electric equipment such as motor, transformer, switch, capacitor, cable, bus and so on from damage, it can play a reliable role in limiting the overvoltage between phases and relative ground, which is not available in traditional lightning arresters.

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Key words:

overvoltage

protector

power

Hotline:

400-068-3818

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Product Description
Technical parameters
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Manual Resources
Test wiring
ACCESSORIES LIST

- Commodity name: ZBHQ-30AD overvoltage protector tester
As a new type of overvoltage protection device in power system, three-phase combined overvoltage protector has been widely used in 35kV and below power system to limit lightning overvoltage, vacuum circuit breaker operating overvoltage and various transient overvoltage that may occur in power system, which can effectively protect the insulation of electric equipment such as motor, transformer, switch, capacitor, cable, bus and so on from damage, it can play a reliable role in limiting the overvoltage between phases and relative ground, which is not available in traditional lightning arresters.

1. Overview：

As a new type of overvoltage protection device in power system, three-phase combined overvoltage protector has been widely used in 35kV and below power system to limit lightning overvoltage, vacuum circuit breaker operating overvoltage and various transient overvoltage that may occur in power system, which can effectively protect the insulation of electric equipment such as motor, transformer, switch, capacitor, cable, bus and so on from damage, it can play a reliable role in limiting the overvoltage between phases and relative ground, which is not available in traditional lightning arresters.

The test of overvoltage protector should comply with the "DL/T 474.5-2006" field insulation test implementation guide part 5: lightning arrester test requirements. Three-phase combined overvoltage protectors are mainly divided into two categories: overvoltage protectors with series gaps and overvoltage protectors without gaps. The contents of the test items require the use of high-voltage power frequency AC and high-voltage DC power supplies respectively. One set of DC high-voltage test equipment and one set of AC withstand voltage test equipment are required for the test. The equipment is large in volume and large in number, and the test wiring test is complicated and inefficient. There is no special instrument that can cover the gap and mutual gapless overvoltage protector in China. For this reason, our company has developed a comprehensive detection device for three-phase combined overvoltage protector suitable for 10kV voltage level and below, which is used for debugging and testing projects of three-phase combined overvoltage protector, in order to find dangerous defects such as internal insulation moisture and valve aging as early as possible.

II Performance characteristics：

1. The instrument host adopts high-strength, high-insulation, wear-resistant hard plastic sealed box, which has the characteristics of beautiful appearance, sturdiness and durability, good shockproof performance, high insulation level, convenient on-site handling, etc;

2. The instrument uses 220V mains power supply, can meet all kinds of test site.

3. Thoughtful safety design: The instrument is designed with a high-voltage output switch, and the hardware circuit can only be connected to the high-voltage output circuit after being placed in OUT, which can effectively avoid the hidden danger of causing injury to the test personnel due to high-voltage output due to misoperation. Once the instrument has high-voltage output, it will give out an audible and visual alarm prompt, which has a good prompt effect on site users.

4. Instrument host built-in 32-bit high-speed processor, with powerful data processing capabilities.

5. All Chinese simplified LCD display, good man-machine interface, simple and intuitive operation.

6. The functions of the instrument are fully configured and flexible. The host can directly output DC high voltage for testing gapless three-phase overvoltage protectors and zinc oxide lightning arresters, and can also be configured with test transformers for power frequency discharge voltage tests with series gap overvoltage protectors. A set of instruments can complete the test items of commonly used overvoltage protectors.

7. The test parameters include AC action voltage test of series gap overvoltage protector and DC 1mA reference voltage test of no gap overvoltage protector and zinc oxide arrester, with reliable data and high precision.

8. Accessory configuration is complete, can meet the needs of various types of overvoltage protector test site.
2.Technical parameters:

1. Power frequency discharge voltage test

⑴ Output voltage (AC):0.00 ~ 30.0kV

Resolution: 0.1kV

(3) Measurement accuracy: ± 1%± 2 words

Test interval: ≥ 15S

The test is completed automatically calculate the average value of three times and has an optional printing function

2. DC 1mA reference voltage test

⑴ Rated output (DC): voltage 0-30kV current 0-1000μA

⑵ Measuring range: current 0-1000μA voltage: 0-30.0kVdc

⑶ resolution: current 1uA voltage: 0.1kV

Measurement accuracy: ± 1%± 1 words

With residual pressure automatic discharge function

(6) with optional printing function

3. Other parameters

Power supply mode: 220V ± 10%

⑵ Ambient temperature:-10 ℃ ~ 50 ℃

Relative humidity: RH≤ 80%

Altitude:<1000 m

(5) Overall dimensions: host: length 440mm × width 300mm × height 300mm; Test transformer: length 270mm × width 270mm × height 300mm

(6) Weight: instrument host: 17kg; test transformer: 12kg
Attachment Download:ZBHQ-30AD overvoltage protector testerUser Manual. doc.
Field wiring and use of instruments

　　Note: All wiring of overvoltage protector shall be removed before the test, and three phases A, B and C and ground wires shall be kept in suspended state!!

a Phase-to-ground test wiring of overvoltage protector with series gap (take A phase-to-ground wiring as an example)

Fig. 2 Phase-ground Test Wiring Diagram of Overvoltage Protector with Series Gap

B Phase-phase test wiring of overvoltage protector with series gap (take phase A- phase C wiring as an example)

　

Fig. 3 Wiring Diagram for Phase-Phase Test of Overvoltage Protector with Series Gap

c Phase-to-ground test wiring of over-voltage protector without series gap (take A phase-to-ground wiring as an example)

Fig. 4 Phase-ground Test Wiring Diagram of Overvoltage Protector Without Series Gap

d Phase-phase test wiring of overvoltage protector without series gap (take phase A- phase C wiring as an example)

Fig. 5 Wiring Diagram of Phase-Phase Test of Overvoltage Protector Without Series Gap

ACCESSORIES LIST

Name	Quantity	Remarks
Host	1
Test transformer	1
AC/DC high voltage output line	1 root
AC input line (air line)	1 root
Ground wire	1 set	3
Power Cord	1 root
Test Clip	Two
Printing paper	4 volumes
Accessory box	1
User Instructions	1 part
Certificate	1 part

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Wuhan Zhongke Xinyi Electric Power Technology Co., Ltd.

Brand: ZECERS/Zhongke Xinyi

Wuhan Zhongke Xinyi Electric Power Technology Co., Ltd. (brand: ZECERS/Zhongke Xinyi) is a high-tech enterprise focusing on the design, development, manufacturing and technical services of high-voltage test equipment and secondary test equipment for power systems.

The company is located in the Optics Valley New District of the High-tech Development Zone, with 5600 square meters of modern standard production plants and perfect manufacturing, processing and testing equipment. The company has a strong research and development, solid technology, excellent quality team, and Wuhan universities have close ties and technical cooperation, laying a solid foundation for technological innovation. The company has successively obtained ISO9001:2015 international quality management system certification and high-tech enterprise certification. Based on domestic power system testing, the company explores high-tech cutting-edge information technology, and is committed to the research of various new power technologies and the formulation and promotion of relevant standardization.

The company adheres to the business philosophy of "quality-oriented, pioneering and innovative, honest and pragmatic, and win-win cooperation", regards product quality and independent innovation as the core competitiveness of the enterprise, and continuously strives for the standardization, humanization, intelligence, refinement and diversification of products. The products cover all aspects of power testing, and widely serve the State Grid, South Grid, Inner Mongolia Power Grid and other power systems, major power generation groups, photovoltaic wind power new energy enterprises, railway petrochemical enterprises, metallurgical industrial and mining enterprises, electrical complete sets of enterprises, transmission, transformation and distribution engineering construction units, scientific research institutions, third-party testing institutions and other enterprises and institutions. The power testing equipment produced by the company provides a reliable data basis for the safe operation of the power system. The company's products have covered all provinces and cities in the country, and have been exported to Laos, Myanmar, Cambodia, Vietnam, Pakistan, East Africa, Russia, Malaysia, Brazil, Europe and other countries, and have been widely recognized.

"Technology to create the future, innovation to change the present", would like our professional to provide you with satisfactory products and services and create more value.

2014 Year

Company establishment

3060 Wan yuan

Registered capital

5600 ㎡

Production plant

8372 +

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