The ground faults of distributing overhead lines feature small fault current,and thus are difficult to precisely localize.In view of this,this work made a preliminary attempt to develop a set of faulty line determination and fault locali-zation system.The system could real-time monitor the zero-sequence current and traveling waveform generated upon fault occurrence,thereby achieving prompt localization of ground faults.
10 kV distribution network overhead lineground faultfaulty line determinationfault localization