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JP2011227019A Dc circuit ground fault search device and dc circuit ground fault accident spot search method 有权
标题翻译：直流电路接地故障搜索设备和直流电路接地故障点搜索方法
公开(公告)号：JP2011227019A
公开(公告)日：2011-11-10
申请号：JP2010099485
申请日：2010-04-23
申请人： Chugoku Electric Power Co Inc:The , 中国電力株式会社
发明人： SHOJU YUJI , FUJII YUJI , HAYASE NORIYUKI , NONOGAMI MITSUHIRO
IPC分类号： G01R31/08
摘要： PROBLEM TO BE SOLVED: To provide a DC circuit ground fault search device and a DC circuit ground fault accident part search method, which allow a firm search for a ground fault accident spot on an uninterruptive power basis.SOLUTION: The DC circuit ground fault search device 10 includes: an insulated DC power source 11 for supplying an output voltage a few bolts lower than a circuit voltage supplied from a DC power supply device 110 to one of first through third loads instead of the circuit voltage to the load when a ground fault accident spot is searched for and when circuits 3through 3connecting voltage supply lines 1 and 2 to the one load are disconnected; a voltage-to-ground measurement part 12 for measuring a positive voltage-to-ground and a negative voltage-to-ground of the voltage supply lines 1 and 2; and a control part 13 for determining whether the circuit is a ground fault accident spot on the basis of the positive earth voltage and the negative earth voltage measured by the voltage-to-ground measurement part 12 when the ground fault accident spot is searched for.
摘要翻译：要解决的问题：提供直流电路接地故障搜索装置和直流电路接地故障事故部件搜索方法，可以在不间断电源的基础上坚定搜索接地故障事故点。解决方案：DC电路接地故障搜索装置10包括：绝缘直流电源11，用于将比从直流电源装置110提供的电路电压低几个螺栓的输出电压提供给第一至第三负载中的一个，而不是当电路3 1 通过3 3 连接电压时，检测到接地故障事故点时负载的电路电压电源线1和2与一个负载断开; 用于测量电源线1和2的正电压对地和负电压对地的电压对地测量部分12; 以及控制部13，用于基于当搜索接地故障事故点时由电压对地测量部分12测量的正的接地电压和负的接地电压来确定电路是否是接地故障事故点。版权所有（C）2012，JPO＆INPIT

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