一起110kV两线同时受雷击的跨线事故分析

An analysis of accident for 110kV two cross-line being thundered synchronously

通过对故障线路的故障录波图的电流、电压进行详细计算分析,同时对故障线路的实际地理布线进行调查,确认了一起两条非相邻线路因受雷击而同时发生两相接地短路的跨线故障,提出对线路故障的分析不仅要从故障录波图进行分析,还要深入了解线路实际的地理情况,以便能更加快速地对故障产生的原因做出合理正确的判断。

Through analyzing the current and voltage of recorded waveforms, this paper confirms an accident of two non-neighboring lines were thundered at the same time which resulted in two-phase grounding and short circuit. This paper proposes that it not only needs to record the waveforms for line fault＇s analysis, but also inquire deeply line actual geography situation in order to be able to judge more quickly and correctly.