一起110kV线路故障开关拒动事件的分析  

Analysis of a 110kV Line Failure Switch Failure Event

作　　者：齐振宇 周刚 毕江林 QI Zhen-yu;ZHOU Gang;BI Jiang-lin(Jiashan Power Supply Company,Jiashan 314100,China;Jiaxing Power Supply Company,Jiaxing 314000,China)

机构地区：[1]国网浙江省电力有限公司嘉善供电公司,浙江嘉善314100 [2]国网浙江省电力有限公司嘉兴供电公司,浙江嘉兴314000

出　　处：《电气开关》2022年第5期95-97,102,共4页Electric Switchgear

摘　　要：本文分析了一起110kV线路故障开关拒动事件,阐明了事故的原因和处理过程。现场检查各一二次设备均正常。对跳闸出口压板41CLP1进行检查,模拟压板接触不良,压板投入但未压紧的情况,在极端情况下,存在压板接触不充分导致压板失效的可能,表现出来的保护动作信息和监控信息也与故障时一致。This article analyzes a 110 kV line failure switch failure event,and clarifies the cause and handling process of the accident.The first and second on-site inspections of the equipment are normal.Check the tripping outlet pressure plate 41 CLP1 to simulate the poor contact of the pressure plate,and the pressure plate is input but not compressed.In extreme cases,there is a possibility that the pressure plate may fail due to insufficient pressure plate contact.The displayed protection action information and monitoring information are also related to the fault.Time is consistent.

关 键 词：开关拒动 断路器 二次回路 压板 

分 类 号：TM56[电气工程—电器]