摘要
220kVI段母线c相电压互感器发出电压异常信号，出现二次电压下降故障，通过解体分析，并采用相应的试验方法，查找出内部放电故障部位。
The potential transformer of phase C of section I of 220kV bus sent out an abnormal voltage signal with fault of the secondary voltage falling. Based on the disassembly check and adopting the corresponding test method, the internal fault discharge position was found out.
出处
《大科技》
2012年第8期86-87,共2页
关键词
电压互感器二次电压下降
油色谱试验分析
解体试验分析
一次绕组放电
abnormal voltage drop of potential transformer
oil Chromatographic analysis
disassembly check
discharge of primary winding
