某断路器防跳回路隐患致母线跳闸事故原因分析  

Cause Analysis of Bus Tripping Accident Caused by Hidden Danger of Anti Tripping Circuit of a Circuit Breaker

作　　者：童鑫 杨张伟 王雨濛 陶杰 殷忠宁 万欣 TONG Xin;YANG Zhangwei;WANG Yumeng;TAO Jie;YIN Zhongning;WAN Xin(State Grid Anhui Hefei Power Supply Company,Anhui Hefei 230022,China)

机构地区：[1]国网安徽合肥供电公司,安徽合肥230022

出　　处：《农村电气化》2022年第8期34-37,共4页Rural Electrification

摘　　要：断路器防跳回路主要由若干继电器及辅助节点组成,继电器之间的配合是保证防跳回路和分、合闸回路正确动作的前提。介绍了某变电站母线跳闸事故,并从各方面进行了全面分析,总结出一种断路器防跳回路隐患,确认该隐患为防跳回路中继电器之间在时间上配合不当,导致母线跳闸事故,提出给出了针对该隐患的解决措施。The anti-pumping-circuit of circuit breaker is mainly composed of several relays and auxiliary nodes. The cooperation between relays is the premise to ensure the correct action of the anti-pumping-circuit and the opening and closing circuits. This paper introduces a bus trip accident in a substation, and makes a comprehensive analysis from all aspects, summarizes a hidden danger of the anti-pumping-circuit of circuit breaker, and confirms that the hidden danger is that the relay devices of the anti-pumping-circuit do not cooperate properly in time, resulting in the bus trip accident. Finally, the paper gives the solutions to the hidden danger.

关 键 词：防跳回路 继电器 隐患 跳闸 

分 类 号：TM561[电气工程—电器]