This product is a special system equipment for power cable fault testing developed and produced by our company under the opportunity of rapid progress in the power industry and according to industry development and market demand. It is mainly used for testing open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as accurate testing of open circuit and short circuit faults of coaxial communication cables and local telephone cables. It can also measure the speed of electric waves, measure the length of cables, etc., and can establish cable files for daily maintenance and management.

Classification:

Key words:

Cable line test instrument

resistance

circuit

Hotline:

400-068-3818

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Product Description
Technical parameters
Product selection
Manual Resources
Test wiring
ACCESSORIES LIST

- Commodity name: ZEGX-8000 cable comprehensive detector
This product is a special system equipment for power cable fault testing developed and produced by our company under the opportunity of rapid progress in the power industry and according to industry development and market demand. It is mainly used for testing open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as accurate testing of open circuit and short circuit faults of coaxial communication cables and local telephone cables. It can also measure the speed of electric waves, measure the length of cables, etc., and can establish cable files for daily maintenance and management.

1. Overview：

This product is a special system equipment for power cable fault testing developed and produced by our company under the opportunity of rapid progress in the power industry and according to industry development and market demand. It is mainly used for testing open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as accurate testing of open circuit and short circuit faults of coaxial communication cables and local telephone cables. It can also measure the speed of electric waves, measure the length of cables, etc., and can establish cable files for daily maintenance and management.

This product adopts the highest international level of time domain reflectometry (TDR technology, automatic distance judgment of fault waveform, simple and clear, convenient and pleasant to use. The whole machine is designed with industrial black safety protection box, with protection grade IP67, small and exquisite, easy to carry. The man-machine interface is friendly, even if non-professional personnel operate, they can still be familiar with and use it quickly, and complete the cable fault test efficiently and accurately.

　　

2. features

1. For 35kV and below different levels, different cross-section, different media and various materials of power cable fault, including: open circuit, short circuit, low resistance, high resistance leakage, high resistance flashover fault.

2. It can cooperate with high-voltage equipment to realize the low-voltage pulse method, impact flashover method, three pulse method, multiple pulse method and speed measurement method of traditional cable fault test.

3. Full Chinese operating software and the use of interface, sub-menu and text prompts to achieve human-computer interaction.

4. Industrial-grade 10.4-inch color touch LCD display, full Chinese operating software and user interface, sub-menu mode and text prompts to realize human-computer interaction.

5. Global waveform and local waveform synchronous display, easy to overall analysis and detail adjustment.

6. Any high resistance fault presents the simplest waveform characteristics similar to low voltage pulse short circuit fault, which is easy to interpret.

7. When using the multiple pulse method to test, the interface simultaneously collects 8 real waveforms, which is more convenient to interpret and reduce test errors, and improve test accuracy.

8. Built-in power supply, it can be used for a long time in a power-free environment.

Industrial grade black safety protection box design, protection grade IP67, small size, light weight, easy to use, fault detection success rate and high test accuracy.

10. Stable performance in any environment, no crash, signal acquisition high-voltage protection measures safety.

11. Built-in storage/call out function, which can easily save or call out data and waveforms for re-analysis.

12. The test signal provides a variety of pulse width, no test blind area.
1.Technical parameters:

1. Sampling method: low-voltage pulse method, impact flashover method, speed measurement method (extended with three pulse method, multiple pulse method)

2. Sampling rate: 200 MHz, 100 MHz, 80 MHz, 40 MHz, 20MHz, 10 MHz

3. Pulse width: 0.05 μs, 0.1 μs, 0.2 μs, 0.5 μs, 1 μs, 2 μs, 8 μs

4. Wave speed setting: cross-linked ethylene, polyvinyl chloride, oil-impregnated paper, non-dripping oil and unknown type self-setting

5. Impact high voltage: 40kV and below

6. Test distance:<60km

7. Resolution: 1m

8. Test accuracy: 1m

9. Display mode: industrial grade 10.4 inch color touch LCD screen

10. Operation mode: touch screen operation, physical knob operation

11. Analysis settings: scroll, zoom, save, call out, wave shift and other functions

12. Working power supply: built-in battery power supply, coupling unit passive work

13. continuous work:>4h (can also use external power supply)

14. Storage function: with data storage function, can store a large number of field waveforms and data, and call up at any time to use

15. Waveform analysis: all the high impedance fault waveform only for the low-voltage pulse method of short-circuit fault waveform characteristics, easy to analyze the card bit

16. Waveform processing: The measured fault point waveform and the full-length open-circuit waveform of the good phase can be displayed on the screen at the same time for on-screen comparison and overlay comparison, and the fault distance can be automatically judged.

17. Packing specification: industrial grade black safety protection box, protection grade IP67

18. Overall dimensions: length 365mm × width 269mm × height 169mm

19. Weight: 3.8kg

　　

2. working principle

This product uses the principle of time domain reflection (TDR), that is, an electric pulse is emitted to the cable, and the electric pulse will be transmitted at a uniform speed in the cable. When the cable impedance changes (fault point), the electric pulse will be reflected. The ranging host displays the change of the transmission and reflection of the electrical pulse in the form of time domain through the LCD screen, and the fault distance can be directly interpreted through the waveform on the screen.
Attachment Download:ZEDG-305 cable fault tester user manual. doc.
Introduction to the operation of the test method

　　1. Low-voltage pulse method to test the cable disconnection and short-circuit fault distance

1) Wiring:

First connect the double-clamp test line to the "signal" port, then clamp the red clamp of the test line to one fault phase of the faulty cable, and the black clamp to the other fault phase of the faulty cable. Low voltage pulse method connection diagram

2) Boot:

Press the switch key, the screen will display the boot interface; Touch the LCD screen to enter the test interface. At this time, the default test mode of the system is "low voltage pulse method", pulse width "0.2 μs", cable type "cross-linked ethylene" and accuracy "2m". Then adjust the default items to be suitable for this test according to the tested electrical insulation material, length and other factors.

3) Sampling:

Click the "sample" button, the instrument sends out a test pulse and automatically triggers to capture the reflected pulse. At this time, the interface will display the cable break and short circuit waveform as shown below. If the amplitude and position of the waveform are not suitable, the operator can adjust the "displacement" or "amplitude", and then resample and refresh until the operator thinks that the amplitude and position of the echo are suitable for analysis and positioning.

4) Interpretation:

The interpretation of low-voltage pulse wave is relatively easy, as long as the cursor is positioned to the starting point of the transmitted wave and the reflected wave respectively (see the basic theory of waveform analysis for details), and the cursor is operated by the left shift key or the right shift key.

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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Cooperation cases

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 +

Customer Service