35 kV断路器控制回路断线原因分析及应对措施  

Analysis and Countermeasures of Control Loop Disconnection of 35kV Circuit Breaker

作　　者：孟延辉 赵冀宁 李江龙 范晓丹 尹子会 MENG Yanhui;ZHAO Jining;LI Jianglong;FAN Xiaodan;YIN Zihui(Hebei Maintenance Branchof State Grid,Shijiazhuang 050070,China)

机构地区：[1]国网河北省电力有限公司检修分公司

出　　处：《电工技术》2019年第19期97-98,共2页Electric Engineering

摘　　要：针对35 kV断路器控制回路断线缺陷频发问题,检查发现机构微动开关接点烧损。对微动开关和辅助开关动作时间顺序进行了测试,判断该类型机构二次回路设计不合理,微动开关容量选择不合适。为此修改了机构二次回路。To a control loop disconnection defect of 35 kV circuit breaker,the mechanism micro switch contact burned out during inspection.The operation time sequence of micro-switch and auxiliary switch was tested,and it was judged that the design of secondary circuit of this type of mechanism was unreasonable and the capacity selection of micro-switch was not appropriate.The secondary circuit of mechanism was modified.

关 键 词：断路器 控制回路断线 微动开关 

分 类 号：TM561[电气工程—电器]