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    • 1. 发明专利
    • Safety device for electric railcar line
    • 电力线安全装置
    • JP2005073316A
    • 2005-03-17
    • JP2003208929
    • 2003-08-27
    • Railway Technical Res InstSankosha Corp株式会社サンコーシヤ財団法人鉄道総合技術研究所
    • AGUI KOJIMORIMOTO HIROMIHISAMIZU TAIJISATO RYOGO
    • H02H9/06H02H9/04
    • PROBLEM TO BE SOLVED: To solve the problem wherein reliability of protections of signal facility, etc. of a railroad is lowered or maintenance or inspection work is complicated by a damage due to life shortening due to a dynamic current phenomenon and an excess surge generated at an insulation space passing time of a train.
      SOLUTION: In a safety device for an electric railcar line which absorbs excess voltage through an electric railcar line for supplying the power to the electric railcar EC, a main discharge cap G2 is arranged between a negative feedback line NF of a return circuit and a protective ground wire FW or a ground, and a safety device H connected in parallel with a subdischarge cap G3 is arranged in a series connection circuit of a gas arrester h5 and a resistor h2 or in a gas arrester of a series connection circuit of the gas arrestor and a resistor. Thus, the dynamic current by electric discharge of surge voltage generated when a train passes through an insulating space is prevented, and the discharge operation is certainly performed even at a ground-fault accident time. Further, gap adjustment of the discharge gaps after they are arranged, is not needed.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了解决铁路信号设备等的保护可靠性降低或由于动态电流现象引起的寿命缩短导致的维护或检查工作复杂化的问题, 在火车通过时间的绝缘空间产生浪涌。 解决方案:在用于通过用于向电气轨道车辆EC供电的电气轨道车线吸收多余电压的电气轨道车辆线路的安全装置中,主放电盖G2布置在返回电路的负反馈线路NF之间 和保护接地线FW或接地,并且与减压帽G3并联连接的安全装置H布置在气体避雷器h5和电阻器h2的串联连接电路中或者在串联连接电路的串联连接电路的气体放电器中 气体放电器和电阻器。 因此,能够防止在列车通过绝缘空间时产生的浪涌电压的放电动态电流,即使在接地故障事故时也可以进行放电动作。 此外,排列间隙的间隙调整不需要。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • Low power safety device
    • 低功率安全装置
    • JP2009153346A
    • 2009-07-09
    • JP2007331012
    • 2007-12-21
    • Railway Technical Res InstSankosha Corp株式会社サンコーシヤ財団法人鉄道総合技術研究所
    • AGUI KOJIMORIMOTO HIROMISATO RYOGO
    • H02H9/06B60M3/00H02H9/04
    • PROBLEM TO BE SOLVED: To provide a power safety device, which improves ground fault preventive capability to electronic equipment or the like by lowering a discharge starting voltage, and suppresses destruction due to a discharge current in a low-voltage surge occurring at a normal operation.
      SOLUTION: A power safety device, which is arranged between a negative feedback line and a protective ground wire in an AC feeding circuit, comprises: a discharger of which one terminal is connected to the negative feedback line; a first electrode connected to the other end of the discharger; a second electrode connected to the other end of the discharger; a third electrode connected to the protective ground wire; a surge protection element interposed between the first electrode and the third electrode; and a resistor interposed between the second electrode and the third electrode.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种电力安全装置,其通过降低放电启动电压来提高对电子设备等的接地故障预防能力,并且抑制由于在低压浪涌中发生的放电电流而导致的破坏 正常操作。 电源安全装置,其布置在交流馈电电路中的负反馈线路和保护接地线之间,包括:一个端子连接到负反馈线的放电器; 连接到放电器的另一端的第一电极; 连接到放电器的另一端的第二电极; 连接到保护接地线的第三电极; 插入在所述第一电极和所述第三电极之间的浪涌保护元件; 以及插在所述第二电极和所述第三电极之间的电阻器。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Failure detection system and method, program, and computer-readable recording medium
    • 故障检测系统和方法,程序和计算机可读记录介质
    • JP2006234461A
    • 2006-09-07
    • JP2005046728
    • 2005-02-23
    • Railway Technical Res InstWest Japan Railway Co西日本旅客鉄道株式会社財団法人鉄道総合技術研究所
    • UMEDA YOSHIKAZUAGUI KOJIAIHARA TORU
    • G01R31/08B60M3/00
    • PROBLEM TO BE SOLVED: To provide a failure detection system capable of detecting precisely a failure point where a grounding trouble occurs, and a method, a program and a computer-readable recording medium therefor.
      SOLUTION: This failure detection system of the present invention detects a trouble that a trolley line is grounded through a structure by contact of the trolley line with the structure including a member for supporting a direct current feed voltage impression part having an electric wire and the trolley line at a predetermined height along a rail while insulating them in a plurality of portions along facility directions thereof, and orients the failure point. The failure detection system has a short-circuiting trouble (grounding trouble) detecting means for measuring a direct current voltage impressed to a protection line when the trolley line is grounded, to detect the short-circuiting trouble between the structure and the protection line, surge voltage propagation time detecting means provided respectively in both ends of the protection line for measuring a detection time of a surge voltage generated on the protection line from the failure point due to a grounding voltage, and a failure point calculation means for calculating a position of the failure point, based on the times detected by the respective surge voltage propagation time detecting means.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供能够精确地检测出现接地故障的故障点的故障检测系统及其方法,程序和计算机可读记录介质。 解决方案:本发明的故障检测系统通过台车线与包括用于支撑具有电线的直流馈电电压压印部件的构件的结构的接触来检测电车线路通过结构接地的故障 和轨道线沿轨道的预定高度,同时沿其设置方向在多个部分中绝缘它们,并且定向故障点。 故障检测系统具有短路故障(接地故障)检测装置,用于测量在电车线路接地时向保护线路施加的直流电压,以检测结构与保护线路之间的短路故障,浪涌 电压传播时间检测装置分别设置在保护线的两端,用于测量由于接地电压引起的在保护线上产生的浪涌电压与故障点的检测时间;以及故障点计算装置,用于计算 基于由各个浪涌电压传播时间检测装置检测到的时间的故障点。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Feeding control device and feeding switching method
    • 进料控制装置和进料切换方法
    • JP2008221898A
    • 2008-09-25
    • JP2007059102
    • 2007-03-08
    • East Japan Railway CoRailway Technical Res Inst東日本旅客鉄道株式会社財団法人鉄道総合技術研究所
    • AGUI KOJIWATABE TETSUJIHAYASHIYA HITOSHISEKIJIMA SHIRO
    • B60M3/04B61L1/18
    • PROBLEM TO BE SOLVED: To safely and surely determine whether a switch is parallel-turned when two different power source feeding lines are parallel-connected by parallel-turning two switches in a switch section of a feeling line of a feeding section.
      SOLUTION: A voltage Vs between a feeding line of a power source A and a feeding line of a power source B is measured in a switch section, and network impedance between the feeding line of the power source A and the feeding line of the power source B is calculated. Then, a prediction current value I flowing in the switch when the switch is parallel-turned is calculated based on the voltage difference Vs and the network impedance. Also, a current flowing in the switch when the switch is parallel-turned while there is no voltage difference and no phase difference between the feeding line of the power source A and the feeding line of the power source B is calculated based on the network impedance, and designated as a reference current value Is. Whether the switch is parallel-turned or not is determined based on the prediction current value I and the reference current value Is.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了安全可靠地确定当两个不同的电源馈线在馈电部分的感应线的开关部分中并联转动两个开关并联时,开关是否并联转动。 解决方案:在开关部分中测量电源A的馈电线和电源B的馈电线之间的电压Vs,并且电源A的馈电线和馈电线之间的网络阻抗 计算电源B. 然后,基于电压差Vs和网络阻抗来计算在开关并联转动时在开关中流动的预测电流值I。 而且,当不存在电压差而开关并联转动时,在开关中流动的电流,并且基于网络阻抗来计算电源A的馈电线和电源B的馈电线之间的相位差 并被指定为参考电流值Is。 基于预测电流值I和基准电流值Is来决定开关是否并联转换。 版权所有(C)2008,JPO&INPIT
    • 7. 发明专利
    • Fault point locating method and apparatus, program, and computer-readable recording medium
    • 故障点位置方法和装置,程序和计算机可读记录介质
    • JP2005315842A
    • 2005-11-10
    • JP2005002568
    • 2005-01-07
    • Railway Technical Res Inst財団法人鉄道総合技術研究所
    • AGUI KOJIUTSUKA TETSUO
    • G01R31/08B60M1/28
    • PROBLEM TO BE SOLVED: To precisely and stably locate the short-circuiting fault point between T-phase and F-phase in a parallel feeder section, without being affected by the cross current, short-circuit resistance, power supply impedance, or the like.
      SOLUTION: A power supply 1A supplies current I14 to an incoming line 5 and supplies a current I13 to an outgoing line 6. A power supply 1B supplies a current I12 to the incoming line 5 and supplies a current I11 to the outgoing line 6; the power supplies 1A, 1B have source impedances 7A, 7B, and the incoming line 5 has a line impedance 8; and the outgoing line 6 has line impedances 9, 10 at both the sides of a short-circuit point, and has short-circuit resistance 11 in between the short-circuit point. In this configuration, the total length of the incoming and outgoing lines 5, 6 is set to D(km); and defining the short-circuiting point to be located at a distance of X(km) from the line connection point of a substation A, X can be obtained from the fault point locating expression: X=D |(I11+I14)/(I11+I13)|.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了精确而稳定地定位并联馈电部分的T相和F相之间的短路故障点,不受交叉电流,短路电阻,电源阻抗的影响, 或类似物。

      解决方案:电源1A将电流I14提供给输入线5,并将电流I13提供给输出线6.电源1B将电流I12提供给输入线5,并将电流I11提供给输出线 6; 电源1A,1B具有源极阻抗7A,7B,并且输入线5具有线路阻抗8; 并且出线6在短路点的两侧具有线路阻抗9,10,并且在短路点之间具有短路电阻11。 在该配置中,输入和输出线路5,6的总长度被设置为D(km); 并且将短路点定义为距离变电站A的线路连接点X(km)的距离,可以从故障点定位表达式获得X:X = D¾(I11 + I14)/( I11 + I13)¾。 版权所有(C)2006,JPO&NCIPI

    • 9. 发明专利
    • Unnecessary operation preventing device of lightening arrestor operation counter, and lightening arrestor operation counter
    • 照明雷达操作计数器和照明雷达操作计数器的不需要的操作预防装置
    • JP2010165595A
    • 2010-07-29
    • JP2009008044
    • 2009-01-16
    • Railway Technical Res Inst財団法人鉄道総合技術研究所
    • AGUI KOJITAKIZAWA KIYOYUKI
    • H01T15/00H01T1/12
    • PROBLEM TO BE SOLVED: To solve a problem wherein a conventional lightening arrestor operation counter operates to count even when a discharge current of a lightening arrestor is small (when a discharge current flows in the lightening arrestor by a switching surge of a switching device).
      SOLUTION: The unnecessary operation preventing device 1 includes a parallel circuit of a varistor Rz and a resistor R inserted between a terminal Na connected to the lightening arrestor 12 and a terminal Nb of a ground side. A discharge tube G is inserted between the terminal Na and a terminal Nc. The discharge tube G is connected to an existing counter 13 through the terminal Nc. In this structure, when the discharge current Ia exceeds a predetermined value, a voltage VR at both ends of the resistor R exceeds a discharge starting voltage VG of the discharge tube G, the discharge tube G discharges, and the discharge current Ia flows in the existing counter 13 through the discharge tube G. THat is, only when the discharge current Ia exceeds the predetermined value, a current flows in the existing counter 13 and the count operation is carried out.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题为了解决现有的避雷器操作计数器的操作,即使当避雷器的放电电流很小时(当放电电流通过开关的开关浪涌在避雷器中流动时) 设备)。 解决方案:不必要的操作防止装置1包括插入在与避雷器12连接的端子Na和接地侧的端子Nb之间的可变电阻器Rz和电阻器R的并联电路。 放电管G插入端子Na和端子Nc之间。 放电管G通过端子Nc连接到现有的计数器13。 在这种结构中,当放电电流Ia超过预定值时,电阻R两端的电压VR超过放电管G的放电起始电压VG,放电管G放电,放电电流Ia流入 现有的计数器13通过放电管G.只有当放电电流Ia超过预定值时,电流在现有计数器13中流动,并且执行计数操作。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Method and device for calculating current passing parallel connection point of different power source
    • 计算不同电源电流并联连接点的方法和装置
    • JP2009220706A
    • 2009-10-01
    • JP2008067581
    • 2008-03-17
    • Railway Technical Res Inst財団法人鉄道総合技術研究所
    • WATABE TETSUJIAGUI KOJIMORIMOTO HIROMI
    • B60M3/04
    • PROBLEM TO BE SOLVED: To provide a device for calculating the current passing a parallel connection point of different power sources for detecting the current value of the current passing the parallel connection point running in a selector switch by an foundation CT when executing the parallel connection of different power sources at a selector section of an AC electric railroad vehicle.
      SOLUTION: The current passing the parallel connection point running in first and second selector switches is detected when closing the first selector switch between a trolley of a power source A and an intermediate section and the second selector switch between a trolley of a power source B and the intermediate section in parallel to the intermediate section insulated from both trolley cables in a selector section between the power sources A and B of an AC electric railroad vehicle by the AT AC feeding system. The detection is executed by using a measurement unit by an AC current sensor provided on an outer wire side of an automatic transformer provided between a feed line and a trolley cable with a rail as a neutral point in a vicinity of the first and second selector switches, and a parallel connection point passing current calculating unit capable of obtaining the parallel connection point passing current value by performing the arithmetic calculation of each current value on the power source A side and the power source B side obtained thereby.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于计算通过不同电源的并联连接点的电流的装置,用于当执行所述电流时,通过基础CT检测通过基础CT通过选择器开关中的并联连接点的电流的当前值 在交流电动车辆的选择器部分处的不同电源的并联连接。 解决方案:当关闭电源A的手推车和中间部分之间的第一选择器开关以及电源手推车之间的第二选择器开关时,检测到通过在第一和第二选择器开关中运行的并联连接点的电流 源极B和与通过ATAC供电系统在交流电动车辆的电源A和B之间的选择器部分中与两个电车电缆绝缘的中间部分的中间部分。 通过使用设置在馈电线路和电车电缆之间的自动变压器的外侧线路上的交流电流传感器通过使用测量单元来执行检测,轨道作为第一和第二选择开关附近的中性点 以及并联连接点通过电流计算单元,其能够通过对由此获得的电源A侧和电源B侧进行每个电流值的算术计算来获得并联连接点通过电流值。 版权所有(C)2010,JPO&INPIT