一起隔离开关发热故障诊断分析

Diagnosis and Analysis of a Case of Disconnector Heating Fault

随着电网负荷的快速增加,隔离开关在运行过程中常出现发热的问题,严重威胁电力系统的稳定运行。介绍一起隔离开关典型发热故障案例,通过红外检测、外观检查、解体检查及电气试验,综合分析隔离开关发热原因,同时对在运隔离开关提出针对性的防范措施。

The rapid increase of power grid load has given rise to the heating problem of operating disconnectors and consequently seriously threatened the stable operation of power system.This paper reports a typical case of heating fault encountered by an actual disconnector,entailing the comprehensive causal analysis by means of infrared detection,appearance inspection,disintegration inspection,and electrical test,as well as the proposal of specific countermeasures to prevent operating disconnectors from heating faults.