摘要
通过两例三次谐波定子接地保护在特殊情况下发生误动的实例分析,说明一次设备参数、一次接线方式对三次谐波电压式定子接地保护的动作可靠性均有影响,提出了设计及选择该接地保护时应注意的事项。
Through the analysis of two malfunction cases of stator ground protection with third-harmonic voltage criterion under special condition, the impact of primary equipment parameters and primary connection on action reliability of stator ground fault protection is presented, therefor the cautions when designing and choosing the ground fault protection are put forward.
出处
《陕西电力》
2007年第6期42-44,共3页
Shanxi Electric Power
关键词
接地保护
动作可靠性
误动
实例
earth-fauh protection
operation reliability
misoperation
cases
