韩城发电厂2号主变压器油色谱异常原因分析及处理

Reason Analysis & Treatment of Abnormal Chromatogram in the Oil of No. 2 Main Transformer, Hancheng Power Station

对韩城发电厂２号主变压器绝缘油中色谱异常原因进行分析，结合现场局部放电试验，确定了故障类型，并进行了处理，避免了一起重大的设备事故。

The fault type is determined by reason analysis of abnormal chromatogram in the oil of No.2 main transformer ,Hancheng power station, combin- ing test of partial discharge. And the fault is handled in time, a serious equipment accident is avoided.