摘要
随着系统容量的增大及微机保护装置的广泛使用,在运行中出现由于电流互感器的问题而造成保护装置不能正确动作的情况。了解掌握保护用电流互感器一些特性,对于分析电流互感器问题引起保护拒动或误动很有必要。文章总结了保护用TA(电流互感器)的特性,并提出了一些解决电流互感器问题引起保护拒动或误动措施,为今后解决此类问题提供了参考。
Along with increasing of system capacity and extensive application of micro-computer protecting devices,some situation of protection devices failure action because of current transformer frequently occurred,thus it＇s indispensable to realize some characteristic of current transformer to analyzing malfunction and refusing action induced by current transformer.The paper summarizes characteristic of protective TA and proposes some measures to solve refusing action and malfunction problem induced by current transformer,therefore it provides reference for the solving of this problem.
出处
《青海电力》
2010年第1期53-55,共3页
Qinghai Electric Power
关键词
保护用电流互感器
TA特性
拒动
误动
protective current transformer
TA characteristic
refusing action
malfunction
