承德暴河220kV变电站2214断路器雷击故障分析

Analysis of Lightning Failure of No. 2214 Disconnector in 220kV Baohe Substation in Chengde Area

分析了2006年6月25日承德220 kV线路故障的情况,判断故障原因为雷击引起断路器绝缘击穿,为此提出了相应的反事故措施。

This paper analyzes the failure of 220 kV lines in Chengde area on June 25,2006 . It is found that the reason of the failure is the insulation of disconnector was breaked down by Lightning. Therefor appropriate countermeasures are put forward.