500kV线路两侧PSL603GW差动保护动作不一致原因分析  

Analysis of Inconsistent Action of PSL603GW Differential Protection on Both Sides of 500kV Line

作　　者：柳明 LIU Ming(South Power Grid EHV Transmission Companies Nanning Bureau,Nanning 530028,China)

机构地区：[1]南方电网超高压输电公司南宁局,广西南宁530028

出　　处：《电工技术》2018年第1期109-110,共2页Electric Engineering

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.

关 键 词：500KV线路 串补电容 谐波 差动保护 

分 类 号：TM588[电气工程—电器]