The present work focused on performing the high-resistance grounding analysis on neutral ungrounding system through synthesizing the signals from high-precision transient fault recorders to cope with small current single-phase grounding short-circuit faults in distribution networks.It mainly studied the faulty line determination and the fault location by collecting recorder signals of various lines and at various positions in the distribution network.Actual experiments dem-onstrated that fault determination through zero-sequence voltage and zero-sequence current facilitates effective reduction in time for fault recovery,and in achieving accurate location of grounding faults in low-current grounding systems.
关键词
小电流接地系统/中性点不接地/故障录波器/故障研判
Key words
small current grounding system/neutral ungrounding system/fault indicator/fault determination
维普
万方数据