500 kV断路器控制回路断线分析与改进  

Analysis and Improvement of Control Circuit Break of a 500 kV Circuit Breaker

作　　者：丁志强 谢朋海 胡松涛 DING Zhiqiang;XIE Penghai;HU Songtao(Maintenance Branch of State Grid Shanxi Electric Power Corporation,Taiyuan,Shanxi 030001,China)

机构地区：[1]国网山西省电力公司检修分公司,山西太原030001

出　　处：《山西电力》2020年第3期34-35,共2页Shanxi Electric Power

摘　　要：断路器控制回路控制断路器进行跳合闸操作,对断路器的可靠动作非常重要。控制回路断线信号回路由合闸位置继电器和分闸位置继电器的常闭接点串联构成,实现对控制回路状态的监视。对山西某变电站监控系统报“500 kV断路器A相控制回路断线”异常信号报文进行了分析,阐明了该现象产生的动作原理,并提出了相应的改进建议。It is very important for the reliable operation of a circuit breaker that the control circuit of circuit breaker can control the tripping and closing operation of this circuit breaker.The signal circuit of the control circuit break is made up of the normally closed contacts of the closing position relay and the opening position relay connected in series,so as to monitor the state of the control circuit.The abnormal signal of a 500 kV circuit breaker A phase control circuit break reported by a substation monitoring system in Shanxi is analyzed.The operating principle of this phenomenon is expounded and corresponding improvements are suggested.

关 键 词：断路器 控制回路断线 位置继电器 

分 类 号：TM561[电气工程—电器]