一起高压带电显示装置异常造成接地刀闸闭锁的案例分析及处理

Analysis and Treatment of a Case of Earthing Knife-switch Blocking Caused by Abnormality of High-voltage Display Device

本文针对一起高压带电显示装置异常造成地刀控制回路闭锁的实际案例进行分析,作者通过分析高压带电显示装置的原理,以及查阅被闭锁接地刀闸的电气闭锁回路图纸,最终确定了异常闭锁发生的原因,并提出了相应的异常处理建议。

This paper analyzes a case of earthing knife-switch control circuit blocking caused by abnormality of high-voltage display device.Through analyzing the principle of high-voltage display device and checking the electrical blocking circuit drawings of the blocked earthing knife-switch,the author determines the reason of abnormal blocking and eventually puts forward corresponding suggestions.