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1. 发明公开

EP3149497A1 SYSTEM AND METHOD FOR PULSED GROUND FAULT DETECTION AND LOCALIZATION 审中-公开
标题翻译：系统在维多利亚州
公开(公告)号：EP3149497A1
公开(公告)日：2017-04-05
申请号：EP15798667.0
申请日：2015-05-28
申请人： Eaton Corporation
发明人： DIMINO, Steven Andrew , LOUCKS, David Glenn , WOLFE, Robert Thomas
IPC分类号： G01R27/20 , G01R19/02
CPC分类号： G01R31/088 , G01R31/025 , G01R31/086 , H02H3/17 , Y04S10/522
摘要： A system for locating a ground fault in a high resistance grounded (HRG) power distribution system includes a pulsing circuit configured to introduce a pulse current into the distribution system and current sensors adapted to monitor three-phase current signals present on conductors of the distribution system, with the current sensors positioned on a number of distribution networks included in the HRG power distribution system and at a protective device included on each respective distribution network. A processor associated with each protective device receives signals from the current sensors for identifying a location of the ground fault in the HRG power distribution system, with the processor associated with each protective device receiving measurements of the three-phase current signals from the current sensors over a plurality of cycles and identifying a pattern of interest in the three-phase current signals across the plurality of cycles in order to detect a ground fault.
摘要翻译：一种用于在高电阻接地（HRG）配电系统中定位接地故障的系统包括：脉冲电路，其配置成将脉冲电流引入分配系统;电流传感器适用于监测存在于配电系统的导体上的三相电流信号电流传感器位于包括在HRG配电系统中的多个分配网络上，并且位于每个相应分配网络上的保护装置上。与每个保护装置相关联的处理器从电流传感器接收信号，用于识别HRG配电系统中接地故障的位置，处理器与每个保护装置相关联，接收来自电流传感器的三相电流信号的测量结果多个周期并且识别多个周期中的三相电流信号中的感兴趣模式，以便检测接地故障。

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