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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

2. 发明专利

JP2012032153A Non-contact dc voltage detector 有权
标题翻译：非接触式直流电压检测器
公开(公告)号：JP2012032153A
公开(公告)日：2012-02-16
申请号：JP2010169088
申请日：2010-07-28
申请人： East Japan Railway Co , Tsuda Electric Meters Co Ltd , 東日本旅客鉄道株式会社 , 津田電気計器株式会社
发明人： IDENO ICHIRO , YOSHIDA TADASHI , TSUDA YOSHIYUKI , NAGAMORI MASAKI
IPC分类号： G01R15/24
摘要： PROBLEM TO BE SOLVED: To provide a non-contact DC voltage detector capable of highly efficiently measuring a potential being applied under the state where no current flows, in spite of simple configuration.SOLUTION: A non-contact DC voltage detector includes: a liquid crystal element 2 in which light transmissivity is changed by a potential difference between two electrodes 2A and 2B; a measuring electrode panel 3 which is electrically connected to the electrode 2A and receives an electric field; a comparison electrode 4 electrically connected to the electrode 2B; a reflector plate 5 disposed at a side of the electrode 2A; a light-emitting element 6 and a light-receiving element 7 disposed at a side of the electrode 2B; and a measuring circuit 8 for measuring electric field strength from an intensity signal of light measured by the light-receiving element 7.
摘要翻译：要解决的问题：提供一种非接触式直流电压检测器，其能够高效地测量在没有电流流动的状态下施加的电位，尽管结构简单。解决方案：非接触DC电压检测器包括：透光率由两个电极2A和2B之间的电位差改变的液晶元件2; 测量电极板3，其电连接到电极2A并接收电场; 电连接到电极2B的比较电极4; 设置在电极2A侧的反射板5; 设置在电极2B侧的发光元件6和受光元件7; 以及用于根据由光接收元件7测量的光的强度信号测量电场强度的测量电路8.版权所有（C）2012，JPO＆INPIT

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