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1. 发明专利

JP2005341757A Device for monitoring electrical path grounding state 有权
标题翻译：用于监测电气路径接地状态的装置
公开(公告)号：JP2005341757A
公开(公告)日：2005-12-08
申请号：JP2004159716
申请日：2004-05-28
申请人： Fuji Electric Systems Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士電機システムズ株式会社
发明人： SATO SUSUMU , FUKUDA EIJI , TSUKADA MASAO , TANABE KINYA , AOYAMA KEN , GOTO TOSHIAKI , NIHEI OSAMU
IPC分类号： H02H11/00 , H01H31/02 , H02H7/26
摘要： PROBLEM TO BE SOLVED: To provide a device for monitoring electrical path grounding state that can surely detect faults, if the fault occurs that at least one phase of grounding wires is disconnected, in a multiple-phase electrical path grounding means. SOLUTION: This electrical path grounding state monitoring device comprises a grounding end provided with a grounding means for grounding an electrical path and a monitoring end that supplies a monitoring current to this grounding end and closed circuits including the electrical path and that monitors the grounding state of the grounding end by the detection of the monitoring current, in the electrical path separated from a power system that transmits and distributes electric power. In this device, a constant-current power source is used as the supply source of the monitoring current in the monitoring end, the monitoring currents that flow in each electric wire of the electric path are each detected, and the grounding state at the grounding end decided by comparing the monitoring currents detected from each wire with each other or with a reference value. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于监视能够可靠地检测故障的电路接地状态的装置，如果在多相电路接地装置中发生至少一相接地线的故障断开的情况。该电路接地状态监视装置包括：接地端，其具有用于使电路径接地的接地装置和向该接地端提供监视电流的监视端和包括电路径的闭合电路，通过检测监控电流，在与传输和分配电力的电力系统分离的电气路径中接地端的接地状态。在该装置中，使用恒流电源作为监视端的监视电流的供给源，分别检测流过电路的每根电线的监视电流，接地端的接地状态通过比较从每根导线检测到的监测电流彼此或与参考值进行比较来确定。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005337989A Circuit current measuring instrument 审中-公开
标题翻译：电路电流测量仪器
公开(公告)号：JP2005337989A
公开(公告)日：2005-12-08
申请号：JP2004159715
申请日：2004-05-28
申请人： Fuji Electric Systems Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士電機システムズ株式会社
发明人： SATO SUSUMU , FUKUDA EIJI , TSUKADA MASAO , TANABE KINYA , AOYAMA KEN , GOTO TOSHIAKI , NISHIKAWA HIDETAKA
IPC分类号： G01R31/02
摘要： PROBLEM TO BE SOLVED: To provide a circuit current measuring instrument capable of avoiding the risk of electric shock when measuring a current in a high voltage of circuit by a current measuring instrument having a split type current transformer.
SOLUTION: In this measuring instrument provided with the current transformer for measuring the current in the circuit by penetrating an electric wire of the circuit through a split type annular iron core constituted openably, a proper length of measuring rod is provided, the current transformer with a detection coil wound at least around the split type annular iron core constituted openably is attached to a tip of the measuring rod, an opening and closing operation device is provided in the vicinity of a rear end of the measuring rod to operate opening and closing of the split type annular iron core, and the opening and closing operation device is linked to the split type annular iron core to allow the opening and closing operation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电路电流测量仪器，其能够通过具有分体式电流互感器的电流测量仪器测量电路的高压中的电流时避免触电的危险。
解决方案：在具有电流互感器的测量仪器中，通过通过可开启地构成的分体式环形铁芯穿透电路的电线来测量电路中的电流，提供适当长度的测量棒，电流至少在围绕分割式环形铁芯缠绕的检测线圈的变压器被安装在测量杆的前端，开关操作装置设置在测量杆的后端附近以操作开口，分体式环形铁芯的闭合，开闭动作装置与分体式环状铁芯连结，能够进行开闭动作。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2006156103A Cable run switch device and electric drum device having the cable run switch device 有权
标题翻译：具有电缆运行开关装置的电缆运行开关装置和电动鼓装置
公开(公告)号：JP2006156103A
公开(公告)日：2006-06-15
申请号：JP2004344382
申请日：2004-11-29
申请人： Fuji Electric Systems Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士電機システムズ株式会社
发明人： SATO SUSUMU , TSUKADA MASAO , TANABE KINYA , KITAGAWA TATSUYA , AOYAMA KEN
IPC分类号： H01H9/54 , H01R13/46
摘要： PROBLEM TO BE SOLVED: To provide a cable run switch device that ensures safety by cutting off feeding if detecting the connection of a load to cable runs within a fixed time of recovery from a service interruption, and eliminates a troublesome routine recovery operation by maintaining feeding if detecting no load connection to the cable runs; and an electric drum device having the cable run switch device.
SOLUTION: A timer means 40 for providing a timing operation of a predetermined time t1 from a recovery time point is connected between cable runs 11 and 12 on a load side of a cable run switch 20 for breaking the cable runs in response to an operation command. If a current detection means 50 for detecting a load current produces a detection output during the timing operation t1 of the timer means 40, the operation command Tc is applied to the cable run switch 20 to break a feed line.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电缆运行开关装置，其在从服务中断恢复的固定时间内检测到负载与电缆连接的连接，通过切断馈电来确保安全性，并且消除麻烦的例行恢复操作如果检测到无负载连接到电缆线路，则保持馈电; 以及具有电缆行程开关装置的电动鼓装置。解决方案：用于从恢复时间点提供预定时间t1的定时操作的定时器装置40连接在电缆运行开关20的负载侧的电缆连线11和12之间，用于响应于一个操作命令。如果用于检测负载电流的电流检测装置50在定时器装置40的定时操作t1期间产生检测输出，则操作指令Tc被施加到电缆运行开关20以断开馈线。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006164787A Apparatus for analyzing operation cause of earth leakage breaker 有权
标题翻译：用于分析地震泄漏断路器操作原因的装置
公开(公告)号：JP2006164787A
公开(公告)日：2006-06-22
申请号：JP2004355435
申请日：2004-12-08
申请人： Fuji Electric Systems Co Ltd , 富士電機システムズ株式会社
发明人： KOIKE TOMOHIRO , NAKANISHI YOUSUKE , SATO SUSUMU , TSUKADA MASAO
IPC分类号： H01H73/00 , G01R31/02 , H02H3/05 , H02H3/34
摘要： PROBLEM TO BE SOLVED: To determine whether an earth leakage breaker normally operates because of electric leakage or it performs an oversensitive operation (unnecessary operation) because of a high-frequency leakage current by serge or an inverter. SOLUTION: A time-frequency analysis part 8 frequency-analyzes a leakage current (zero-phase current) at a breaking operation of a leakage breaker 2 and analyzes temporal changes of frequency components to grasp transitive leakage current changes in the breaking operation of the breaker 2 from both time and frequency. Furthermore, an operation cause analysis part 10 evaluates the leakage current by considering a threshold of ventricular fibrillation to a frequency described in IEC479-2 to determine whether the breaker 2 operates normally because of the electrical leakage or it performs the oversensitive operation (unnecessary operation) because of the high-frequency leakage current by the serge or the inverter. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了确定漏电断路器是否由于漏电而正常工作，或由于由伺服或逆变器引起的高频泄漏电流而执行过敏操作（不必要的操作）。解决方案：时间频率分析部分8对泄漏断路器2的断路操作时的漏电流（零相电流）进行频率分析，并分析频率分量的时间变化，以掌握断路操作中的传递泄漏电流变化的时间和频率的断路器2。此外，操作原因分析部件10通过将心室纤颤的阈值考虑到IEC479-2中描述的频率来评估泄漏电流，以确定断路器2是否因漏电而正常工作或执行过敏操作（不必要的操作）由于伺服或变频器的高频漏电流。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2005012899A Method and device for searching cable 审中-公开
标题翻译：用于搜索电缆的方法和装置
公开(公告)号：JP2005012899A
公开(公告)日：2005-01-13
申请号：JP2003173377
申请日：2003-06-18
申请人： Fuji Electric Holdings Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士電機ホールディングス株式会社
发明人： AOYAMA KEN , GOTO TOSHIAKI , KODAMA TAKESHI , KOBAYASHI TATSUO , FUKUDA EIJI , SATO SUSUMU , TSUKADA MASAO
IPC分类号： G01R31/02 , H02G1/00 , H02G1/06
摘要： PROBLEM TO BE SOLVED: To specify a target cable among a plurality of thick and heavy cables on, for example, a rack, with no use of an earth line. SOLUTION: In order to specify an arbitrary intermediate point of a cable which has been specified at both ends, two wires in the cable are shorted at one end of both ends while a high frequency signal is applied between the same two wires at the other end. The magnetic field outside the cable is detected at the arbitrary intermediate point to specify the cable that is applied with the high frequency signal. COPYRIGHT: (C)2005,JPO&NCIPI

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