Further more, the switches reclose at optimal reclosing time by phase for instantaneousfault and shut down reclosure for permanent fault.
瞬时故障时在最佳重合时刻分相重合，永久故障时闭锁重合闸。
2
A new method, based on the analysis of frequency spectrum of instantaneous power, for the discrimination between internal fault currents and inrush currents in transformer is proposed.
在分析瞬时功率频谱特性的基础上，提出了一种基于瞬时功率的变压器励磁涌流和内部故障电流识别新方法。
3
The transformation of the instantaneous value symmetry component applied, the positive sequence space vector of fault component of the voltage and current can be derived.