大型水电站500kV主变压器故障诊断分析及处理

Fault Diagnosis and Treatment of a 500kV Main Transformer in Large Hydropower Station

介绍了某水电站一台500kV主变压器出现总烃含量升高故障,在现场未找到故障原因的情况下,通过返厂拆解发现了故障原因为低压绕组引线接头熔断。

The fault of increasing the total hydrocarbon content of a 500 kV main transformer in a hydropower station is introduced. In the case that no fault cause has been found on site, the failure of the lead joint of the low-voltage winding is found through disassembly in the factory.