介损试验发现的35kV电压互感器受潮缺陷分析

Analysis on Moisture Defect of 35kV Voltage Transformer Discovered by Dielectric Loss Test

对一起电压互感器介损超标事件进行分析,对可能造成介损超标的原因进行试验,最终确认缺陷为电压互感器内部受潮所致,并根据故障情况提出了相应的解决办法和建议。

In this paper,an analysis is made on the excessive dielectric loss of a voltage transformer.The possible causes of excessive dielectric loss are tested.Finally,it is confirmed that the defect is caused by moisture inside the voltage transformer.According to the fault situation,the corresponding solutions and suggestions are put forward.