摘要
介绍一起500kV线路两侧PSL603GW差动保护动作不一致的跳闸事故,通过对比两侧录波图并结合串补电容及谐波对两侧保护的影响,分析线路两侧差动保护动作不一致原因。
The tripping fault that the PSL603GW differential protection action on both-side of 500kV line was introduced.Trough comparing both-side oscillograph and combining the affection of series capacitor and harmonic wave on both-side protection,the reasons of both-side differential protection being inconsistent was analyzed.
作者
柳明
LIU Ming(South Power Grid EHV Transmission Companies Nanning Bureau,Nanning 530028,China)
出处
《电工技术》
2018年第1期109-110,共2页
Electric Engineering
关键词
500KV线路
串补电容
谐波
差动保护
500kV line
series compensation capacitor
harmonic wave
differential protection
