一起分路接地引发备自投误动的案例分析

Analysis on Automatic Switching Device Malfunction Induced by Line-to-ground

针对某110kV变电站35kV分路接地引起所在母线电压互感器损坏和备自投误动的情况,从装置本身及设计、运行维护等方面的问题,分析备自投装置误动的原因,提出了相应的防范措施。

This paper describes the bus voltage transformer damage and automatic switching device malfunction induced by 35 kV line-to-ground at one 110 kV substation,analyses the causes through the aspects of the device itself and the design,operation and maintenance,and proposes corresponding preventive measures.