张河湾电厂3、4号机低频过流保护动作分析

Analysis on operation of underfrequency and overcurrent protections of No.3 and No.4 units of Zhanghewan Pumped Storage Power Station

论述了张河湾电厂3、4号机抽水启动过程中低频过流保护动作导致3、4号机组抽水启动失败缺陷的分析及处理,并进行了总结与反思。