倒闸操作中几起接地闸刀典型异常实例分析  

Typical abnormal cases analysis about earthing switches operation

作　　者：汪洪明[1] 丁罕[1] 胡一峰[1] 

机构地区：[1]无锡供电公司,江苏无锡214200

出　　处：《电力系统保护与控制》2008年第23期125-127,132,共4页Power System Protection and Control

摘　　要：接地闸刀是保证工作班成员安全的技术措施。在变电站现场发生接地闸刀拒合拒分可能影响停电和送电,甚至可能引起保护的误动作,导致严重事故。对500kV岷珠变电站发生的几起由于联锁异常而导致接地闸刀拒动的实例进行了详细分析。根据分析结果,对接地闸刀联锁回路的管理、验收工作提出了对策和建议。Earthing switches is one of the technical measures to ensure the security for workers. If earthing switches resist to operate, this will impact of power transmission, even lead to serious accident because of the protection＇s misoperation. This paper analyzes the cases that the 500kV Minzhu Substation＇s earthing switches resist to operate because of different interlock abnormalities in detail. The author puts forward countermeasures and suggestions for the management and inspection of earthing switches＇ interlock circuit.

关 键 词：接地闸刀 联锁 异常分析 对策及建议 

分 类 号：TM564[电气工程—电器]