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Automatic test device of zinc oxide arrester with voltage of 35kV and less than 35kV and operation method thereof

A technology of voltage level and automatic testing, which is applied in the direction of instruments, measuring electronics, and measuring devices. It can solve the problems of difficulty in fixing lightning arresters, affecting test results, and low boosting accuracy. It achieves convenient selection of test methods, accurate data transmission, and improved safety effect

Active Publication Date: 2016-01-20
国网山东省电力公司聊城供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The control box of the tester and the DC high-voltage generator are mostly connected by cables or wireless transmission. The test line is easy to be damaged and deformed after long-term use, which will affect the test results.
At the same time, when testing the arrester, the voltage is as high as tens of kilovolts, coupled with the influence of the surrounding operating equipment, the electromagnetic environment is relatively complex, and the wireless connection is easily affected by the surrounding electromagnetic environment, resulting in unstable transmission signals
[0005] (2) During the on-site test, there is no test base for small-sized arresters of 35kV and below, and it is difficult to fix the arrester
[0006] (3) Manual boosting is required during the test, resulting in low boosting accuracy and certain potential safety hazards
[0007] (4) Existing testers have no data storage function and need to be recorded in writing, which is a waste of time and low work efficiency

Method used

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  • Automatic test device of zinc oxide arrester with voltage of 35kV and less than 35kV and operation method thereof
  • Automatic test device of zinc oxide arrester with voltage of 35kV and less than 35kV and operation method thereof
  • Automatic test device of zinc oxide arrester with voltage of 35kV and less than 35kV and operation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] An automatic test instrument for zinc oxide surge arresters with a voltage level of 35kV or below, comprising a hand-held controller 1 and a high-voltage test bench 2, the high-voltage test bench 2 including a voltage conversion module 5, a control module 4 and a communication module 3 connected in sequence;

[0049] The voltage conversion module 5 converts 220V low-voltage power frequency AC into 1kV-90kV high-voltage direct current;

[0050] The control module 4 controls the start and stop of the voltage conversion module 5, and digitally collects the voltage value generated in the whole process of boosting and stepping down;

[0051] The communication module 3 is used to realize data exchange;

[0052] The hand-held controller 1 is connected to the high-voltage test bench 2 through an optical fiber 6 , a photoelectric converter 1 is arranged in the hand-held controller 1 , and a photoelectric converter 2 is arranged in the communication module 3 . Structural block d...

Embodiment 2

[0069] The operation method of the automatic testing instrument described in embodiment 1, concrete steps comprise:

[0070] (1) Select and test the zinc oxide arrester voltage level and test items by the hand-held controller 1, and the hand-held controller 1 sends a corresponding trigger electric signal according to the selected test zinc oxide arrester voltage level and test items, and is determined by the The photoelectric converter converts the trigger electrical signal into an optical signal;

[0071] (2) The optical signal in step (1) is transmitted to the photoelectric converter two through the optical fiber 6;

[0072] (3) The photoelectric converter two converts the optical signal described in step (1) into an electrical signal, and the electrical signal triggers the voltage conversion module 5 to convert the power frequency AC 220V low voltage into a corresponding high voltage direct current within the range of 1kV-90kV, Complete the step-up and step-down process of...

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Abstract

The invention relates to an automatic test device of zinc oxide arrester with voltage of 35kV and less than 35kV and an operation method thereof. The automatic test device comprises a handheld controller and a high voltage test bench. The high voltage test bench comprises a voltage conversion module, a control module and a communication module, which are successively connected. The handheld controller is connected with the high voltage test bench via a fiber. A photoelectric converter 1 is arranged in the handheld controller. A photoelectric controller 2 is arranged in the communication module. According to the invention, the high voltage test bench is connected with the handheld controller via the fiber and a tester is not in electric connection with the high voltage test bench, so security threats to the tester posed by induced electricity and electricity leakage are eliminated; safety of tests is improved; optical signals are free from effects of electromagnetic environment of a test site; and data is transmitted more precisely and stably.

Description

technical field [0001] The invention relates to an automatic test instrument for a zinc oxide arrester with a voltage level of 35kV and below and an operation method thereof, belonging to the technical field of arrester detection equipment. Background technique [0002] With the acceleration of power grid construction and the improvement of power equipment materials, zinc oxide surge arresters have become the most widely used surge arresters in China, and the zinc oxide surge arrester tester is used to test the voltage U 1mA and 0.75U 1mA The regular measurement of the leakage current is the most important means to check the operation status of the arrester. [0003] The zinc oxide arrester test instrument is a special instrument for detecting various AC electrical parameters in the operation of the zinc oxide arrester. The zinc oxide arrester testers currently on the market have the following problems: [0004] (1) The control box of the tester and the DC high-voltage ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/02
Inventor 隋恒侯宪法张建高春燕岳彩鹏董万光陈虎张芳刁明涛陈芳孙圣凯郭晓飞
Owner 国网山东省电力公司聊城供电公司
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