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Lightning impulse testing device

A test device and lightning impact technology, which is applied in the field of electric power system, can solve the problems that lines are vulnerable to lightning strike tripping, etc., and achieve the effect of preventing lightning strike tripping, improving the reliability of power supply, and reasonable structure

Pending Publication Date: 2021-07-16
ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a lightning impulse testing device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that the current power transmission tower only measures the power frequency grounding resistance during the lightning impulse test, and the impact impedance measurement cannot be performed so that the line Susceptibility to lightning tripping issues

Method used

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Embodiment Construction

[0021] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

[0022] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. image 3 The layout method of direction A in the center is described, such as: the positional relationship of front, back, up, down, left, right, etc. is based on the attached image 3 It is determined by the layout direction of A in the middle.

[0023] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0024] as attached figure 1 As shown, the lightning impact test device includes a power supply module 6, a first switch module K1, a lightning wave generation module 7, a second switch module K2, a detection ...

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Abstract

The invention relates to the technical field of power systems, in particular to a lightning impulse testing device which comprises a first switch module, a lightning wave generation module, a second switch module, a detection result collection module and a main control unit. The power supply module, the first switch module, the lightning wave generation module and the second switch module are sequentially connected together, and the main control unit is respectively connected with the first switch module, the second switch module, the power supply module and the communication module. According to the invention, the main control unit controls the on-off of the first switch module and the second switch module so as to achieve the charging and discharging of the lightning wave generation module, and the detection result collection module carries out the collection of an impact current signal waveform and an impact voltage signal waveform of a to-be-tested product after the lightning wave impulse module discharges. The lightning impulse test of the to-be-tested product is completed, the lightning resistance level of the power transmission line and the reliability of power supply are improved, the to-be-tested product is prevented from being easily tripped by lightning stroke when directly connected to the power transmission line, and a guarantee is provided for normal work of the power transmission line.

Description

technical field [0001] The invention relates to the technical field of power systems, and relates to a lightning impulse test device. Background technique [0002] Trips caused by lightning strikes on transmission lines are one of the common faults in power systems. With the increase in the voltage level of transmission lines and the increase in the height of transmission towers, transmission lines are more vulnerable to lightning strikes and face more tripping and power outages caused by lightning strikes and flashovers The tripping accidents caused by direct lightning strikes are mainly divided into three situations: lightning strikes the top of the tower, lightning strikes the center of the lightning protection line span, and lightning strikes the wire; When the voltage difference between the crossarm at both ends of the insulator and the conductor exceeds the flashover voltage of the insulator, a flashover will occur and a tripping accident will occur. [0003] Studies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12H02M5/10H02M7/5387
CPCG01R31/1227H02M7/5387H02M5/10
Inventor 陈文涛张陵公多虎杨利民李山郑义葛志杰詹仲强
Owner ELECTRIC POWER SCI RES INST OF STATE GRID XINJIANG ELECTRIC POWER