里彦电厂2号主变压器的故障判断与处理

DIAGNOSIS AND TREATMENT OF FAULT OCCURRED IN MAIN TRANSFORMER NO.2 AT LIYAN POWER PLANT

应用气相色谱分析法对变压器绝缘油进行溶解气体分析 ,结合电气试验 ,查出了里彦发电厂 2号主变压器由于分接开关接触不良 ,造成内部局部短路问题。随即进行改造处理 。

The disolved gas analysis of insulating oil in the title transformer has been carried out. Combined with electrical test, the problem of internal partial short-circuit fault due to poor contact of on-load tap changer occurred in main transformer No.2 at Liyan Power Plant was discovered. Retrofitting treament has timely been carried out, occurance of a serous accident of the equipment having been avoided.