System and method of locating ground fault in electrical power distribution system
    1.
    发明公开
    System and method of locating ground fault in electrical power distribution system 审中-公开
    系统和Verfahren zur Erdfehlerortung在einem Stromverteilung系统

    公开(公告)号:EP1669767A1

    公开(公告)日:2006-06-14

    申请号:EP05257413.4

    申请日:2005-12-01

    IPC分类号: G01R31/08 H02H7/26 H02J13/00

    CPC分类号: G01R31/086 Y04S10/522

    摘要: A method (144) for locating a ground fault in an electrical power distribution system (12) includes providing a plurality of current sensors (14, 16, 17, 18, 20, 22) at a plurality of locations in the electrical power distribution system (12). The method (144) further includes detecting a ground fault in the electrical power distribution system (12). Current is monitored at a plurality of locations in the electrical power distribution system (12) via the current sensors (14, 16, 17, 18, 20, 22) and a test signal is introduced into the electrical power distribution system (12) via a test signal generating device (44). The plurality of locations are monitored (62) to locate the ground fault between a location at which the test signal is detected and a downstream location at which the test signal is not detected.

    摘要翻译: 一种用于在电力分配系统(12)中定位接地故障的方法(144)包括在电力分配系统(12)中的多个位置处提供多个电流传感器(14,16,17,18,20,22) (12)。 方法(144)还包括检测配电系统(12)中的接地故障。 经由电流传感器(14,16,17,18,20,22)在电力分配系统(12)中的多个位置处监测电流,并且测试信号通过电力分配系统(12)经由 一个测试信号产生装置(44)。 多个位置被监视(62),以在检测到测试信号的位置与未检测到测试信号的下游位置之间定位接地故障。