摘要
简要分析了造成断路器失灵保护误动的原因,并分析了失灵保护中启动回路存在的一些问题,提出了相应的解决方法:主变失灵时解除失灵复合电压闭锁判据的改进;主变断路器启动失灵判据的改进;旁路代运主变断路器时启动失灵回路的完善。
This paper analyses the reasons hriefly that make the circuit breaker protection maloperation, and discusses problems of the starting circuit in the failure protection. Solving method is put forward in this paper that is to improve of the complex-voltage-blocking criterion when transformer protection start breaker failure protection. The criterion of the electric current when main transformer start failure circuit. The improvement of circuit when the bypass switch takes the place of main transformer switch of high-voltage-side,
出处
《继电器》
CSCD
北大核心
2006年第6期71-74,共4页
Relay
关键词
断路器失灵
复合电压
主变启动失灵
旁路断路器
circuit breaker failure
compound voltage
transformer starting failure
bypass switch
