一起800kV罐式断路器绝缘故障判断分析  

Analysis on insulation fault judgement of 800 kV tank-type circuit breaker

作　　者：康真[1] 

机构地区：[1]国网宁夏电力公司检修公司,宁夏银川750011

出　　处：《宁夏电力》2013年第4期29-31,52,共4页Ningxia Electric Power

摘　　要：针对黄河变电站设备运行过程中发生的一起800 kV罐式断路器绝缘故障,通过现场试验及解体检查等方法进行分析,找出了故障发生的原因。分析结果表明:断路器盆式绝缘子根部存在残留异物或凝露,导致运行中放电击穿,是造成断路器绝缘故障的根本原因。Aiming at a insulation fault of 800 kV tank-type station, through the locale test and disassembly check, finds circuit breaker in Huanghe River Sub- out the faults causes of circuit breaker. The analysis result shows that the root of basin-type insulator of ,circuit breaker exist residuum or condensation bringing on it discharge breakdown in operation is the basic reason of the circuit breaker insulation fault.

关 键 词：800 KV 罐式断路器 绝缘故障 

分 类 号：TM561[电气工程—电器]