一起35 kV开关柜沿面放电缺陷分析

Analysis of a 35 kV Switchgear Creeping Discharge Defect

近年来,电网建设发展迅猛,电力企业的供电可靠性也随之提高,很少出现停电、限电的情况。其中,配电网作为直接连接电力用户的供电系统,在提高供电可靠性方面同样功不可没。本文简要介绍了配电网中最重要的电力设备——开关柜的局部放电带电检测方法,分析了一起35 kV开关柜沿面放电缺陷的产生原因和处置过程,并且最终送电后,缺陷消除,一切正常,从而成功避免了事故的发生,提高了供电可靠性。

In recent years,the construction of power grids has developed rapidly,and the reliability of power supply of electric power companies has also improved,and power outages and curtailments have rarely occurred.Among them,the distribution network,as a power supply system that directly connects power users,also plays an important role in improving the reliability of power supply.This paper briefly introduced the most important power equipment in the distribution network-the partial discharge detection method of the switchgear,analyzed the cause and disposal process of a 35 kV switchgear surface discharge defect,and after the final power was transmitted,the defect was eliminated and everything is normal.Thus,accidents have been successfully avoided and the reliability of power supply has been improved.