一起500 kV变压器乙炔含量超标问题的原因分析与处理

Cause Analysis and Treatment of 500 kV Transformer with Excess Acetylene Content Exceeding Standard

针对一起变压器突发产生的乙炔含量超标问题,进行了常规试验、绕组变形试验、油色谱分析,通过解体检查,认为绕组内部出现了高能电弧放电是导致乙炔含量超标的原因,并提出了预防措施与工作建议。

For instance with the transformer producing acetylene suddenly,through the normal electrical test,winding deformation test,oil chromatographic analysis,considers that high energy arc in windings leading to the content of acetylene overstandards,points out the reason of producing acetylene,and puts forward the corresponding precautionary measures and recommendations.