变电站多点接地设备导通测试分析

Analysis of Multi Point Grounding Equipment Conduction Test in Substation

阐述遇到雷击等状况时,接地引下线不足以泄放瞬时大电流而损坏设备。为了解决此问题,提出了一种基于导通测试与钳形电流表配合,对多点接地设备每个接地引下线进行测试的方法。

In this paper,the grounding down lead is not enough to discharge the instantaneous high current and damage the equipment in case of lightning strike.In order to solve this problem,a method of testing each grounding downlead of multi-point grounding equipment based on conduction test and clamp ammeter is proposed.