接触电阻严重不平衡是零序电压保护动作的原因

On the maloperation of zero-sequence voltage protection caused by contact-resistance imbalance

分析了放电线圈开口三角二次绕组的末端与连线的接触电阻严重不平衡的形成,得出了接触电阻严重不平衡是导致零序电压保护动作的原因。

The formation of the severe imbalance of contact resistance between the end of unclose delta on secondary discharge winding and connecting wire is analysed. Consequently the paper draws a conclusion that the severe imbalance of contact imbalance caused the maloperation of zero-sequence voltage protection.