一起330 kV GIS故障原因分析
Qinghai Electric Power(2015)
Abstract
针对一起330 kV GIS组合电器故障,运用带电检测方法对GIS SF6气室中故障进行综合检测,分析事故原因是由运行中CT线圈在电磁场作用下产生振动,与分支振动合成,使CT线圈产生旋转力,CT线圈振动旋转带动挡板旋转,形成紧固螺栓松动,造成机械振动引起悬浮放电故障.
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