一起特殊故障的继电保护动作行为分析  

ANALYSIS OF RELAY PROTECTION TRIPPING CAUSED BY A TYPICAL FAULT

作　　者：林俊昌 

机构地区：[1]广州电力工业局变电管理所,广东广州510180

出　　处：《高压电器》2002年第6期61-63,共3页High Voltage Apparatus

摘　　要：介绍一起由线路故障引起220kV母线母差保护动作的特殊故障,结合保护、母差保护动作情况及故障录波图,分析推断了故障的发展过程及线路、母差保护动作的正确性。A typical fault of line breakdown caused the operation of 220 kV bus p rotection. Combined with the action of the line protection, bus protection and t he wave-record chart, this paper analyses the development course of the breakdow n as well as the validity of the action of the line and the bus protection.

关 键 词：继电保护 CT放电 故障发展 录波图 保护动作 

分 类 号：TM771[电气工程—电力系统及自动化]