大型抽水蓄能电站发电机定子95%接地保护动作跳闸分析

Analysis on 95% Generator Stator Grounding Protection Tripping of Pumped Storage Power Plant

本文介绍了宜兴抽水蓄能电站定子95%接地保护的配置以及原理,以及一次由于电压互感器原因导致继电保护误动的实例,为以后的事故查找积累了经验。

This paper introduces the east of Yixing Pumped Storage Power Station 95% stator grounding protection configuration and principle,and one due to PT causes relay protection tripping cases,accumulated experience for future disaster search.