摘要
分析了一台220 kV变压器直流电阻和色谱异常,结果表明;直流电阻相差超标由内部引线不等引起,色谱异常由潜油泵故障引起,准确判断变压器本体无故障,避免了变压器吊罩检查。
The abnormal chromatogram and DC resistance of 220 kV transformer is analyzed. The result shows that the abnormal DC resistance is caused by unequal internal connection lines and the abnormal chromatogram is due to fault of oil pump. It is determined that there is no any fault in the transformer itself.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2003年第1期60-61,共2页
High Voltage Engineering
