浅谈一起220kV母线侧隔离开关偷合事件

A Brief Discussion on A 220 kV Bus Side Isolation Switch

文章针对220 kV玉律站#3主变变高1M侧22031隔离开关偷合案例,简要介绍了GD20-5AB型隔离开关的基本结构和动作原理,以及事件所引发的危险点分析和改进建议。

According to the 220 kV standard of #3 station main transformer high side 1M steal case 22031 isolation switch.This thesis briefly introduced the basic structure and operation principle of the GD20-5AB type isolating switch, and the danger caused by the incident analysis and recommendations for improvement.