一起10kV开关跳跃事件原因分析

Cause Analysis of a 10kV Switch Tripping Event

介绍了开关跳跃现象产生的原因和防跳功能的原理,针对一起变压器励磁涌流导致的10 kV开关发生跳闸并跳跃事件,分析了开关跳跃的原因,并提出了后续的处置建议,以供开关合闸命令时间长度、开关防跳功能选用等参考。

The cause of switch tripping phenomenon and the principle of anti-trip function were introduced.To an accident of 10 kV switch tripping and jumping caused by transformer inrush current,the causes of switch tripping were analyzed,and the subsequent disposal suggestions were put forward.Suggestions were proposed on the length of switch closing command and the selection of switch anti-trip function.