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1. 发明专利

JP2010042784A Direct current high-voltage grounding relay and circuit for preventing malfunction of relay 有权
标题翻译：用于防止继电器故障的直流电流高压接地继电器和电路
公开(公告)号：JP2010042784A
公开(公告)日：2010-02-25
申请号：JP2008209822
申请日：2008-08-18
申请人： Tsuda Denki Keiki Kk , West Japan Railway Co , 津田電気計器株式会社 , 西日本旅客鉄道株式会社
发明人： KAWAHARA TAKAHARU , FUJISAWA KEIJU , TOGIISHI DAISUKE , MAEDA HIROSHI , NISHIKAWA TOSHIAKI , NAGAMORI MASAKI
IPC分类号： B60M3/00 , H02H3/16
摘要： PROBLEM TO BE SOLVED: To provide a direct current high-voltage grounding relay without having an adverse influence on travel of a train, preventing the occurrence of malfunction due to a disturbance such as a lightening strike, and to provide a circuit for preventing the malfunction of the relay. SOLUTION: This invention relates to the direct current high-voltage grounding relay 1 with a potential difference detecting section 10 operated by the potential difference between a ground mat 7 and a return line 4, arranged between the ground mat 7 and the return line 4 of a direct current substation 2 for an electric railroad. It is provided with an electric discharge circuit 15 discharging electric charge charged between the ground mat and the return line with stray capacitance C due to application of an impulse voltage so that the potential difference becomes below the operating voltage within the operating time of the potential difference detecting section. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种直流高压接地继电器，而不会对列车的行驶产生不利影响，防止由于诸如减轻雷击的干扰引起的故障的发生，并且提供用于防止继电器故障。解决方案：本发明涉及具有电位差检测部分10的直流高压接地继电器1，其由接地垫7和返回线路4之间的电位差操作，布置在接地垫7和返回线用于电力铁路的直流变电站2的线路4。设置有放电电路15，其由于施加脉冲电压而使接地垫和返回线之间的充电电荷与杂散电容C放电，使得电位差在电位差的运行时间内变得低于工作电压检测部分。版权所有（C）2010，JPO＆INPIT

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