风电场35 kV集电线路自然融冰闪络故障分析

Fault Analysis of Wind Farm 35 kV Current Collecting Line Flashover Caused by Natural Ice Melting

对绝缘干弧距离小和脱冰跳跃引发的风电场集电线路自然融冰闪络故障进行深入分析,在多次故障后巡视未发现故障点的情况下,结合理论分析判定故障原因,提出了增大干弧距离、防止脱冰跳跃的措施,经实践验证效果明显,为风电场集电线路防范覆冰故障提供了一种方法和思路。

The natural ice melting flashover fault of wind farm current collecting line caused by small insulation dry arc distance and de icing jump is deeply analyzed.When no fault point is found during the inspection after multiple faults,the cause of the fault is determined in combination with theoretical analysis.The measures of increasing dry arc distance and preventing deicing jumping are put forward.It is proved by practice that the effect is obvious,which provides a method and idea for preventing icing fault of wind farm collector line.