电力系统故障分析课件

PowerSystemFaultAnalysis••(••••:Fault2.2.2.3.•shuntfaults•seriesfaults•simultaneousfaultsshuntfaultsshortcircuitfaults•“”•)3(K)2(K)1(K)1,1(KThree-phase(3)faultLine-toline(LL)faultSingle-line-to-ground(SLG)faultDouble-line-to-ground(2LG)fault••1234••500/220/110•5432311SeriesFaultsopenconductorfaults••onelineopen(1LO)twolinesopen(2LO)simultaneousfaultsABC••1):23