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    • 7. 发明专利
    • Load operation status estimation device and method, and ground-fault generation source estimation device and method using therefor
    • 负载运行状态估计装置和方法以及地面故障生成源估计装置及其使用方法
    • JP2006158082A
    • 2006-06-15
    • JP2004344384
    • 2004-11-29
    • Fuji Electric Systems Co LtdToyota 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
    • SATO SUSUMUYUTANI KOJITANABE KINYAKUWAYAMA JINPEITAKIMOTO KOJIYAMAMOTO HIROSHIAOYAMA KEN
    • H02J13/00G01R31/00G01R31/08
    • PROBLEM TO BE SOLVED: To provide a load operation status estimation device that can estimate the operation status of each load at an arbitrary point by a simple constitution with high accuracy, and its method, and to provide a ground-fault generation source estimation device that can estimate even a ground-fault accident having no reproducibility by using the device and the method, and its method.
      SOLUTION: A load current value related to a plurality of notable frequency components including noise frequencies is modeled in advance with a load current value of each frequency as a function of an operating rate of the load by successively changing and measuring the operating rate of the load at each equipment that is the load, and the load operation status of a feeding system is estimated on the basis of the comparison of the modeled data and the measured value of each frequency of a load current in a truck line. Whereas, the operating rate of the load is a rate of an operation amount to a rated value at the arbitrary notable point.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种可以通过高精度的简单结构来估计任意点的各负载的运行状态的负载运行状态估计装置及其方法,并且提供接地故障产生源 估计装置,甚至可以通过使用该装置和方法来估计甚至不具有再现性的接地故障事故及其方法。 解决方案:通过连续地改变和测量运行速率,预先利用与各种频率的多个显着频率分量相关的负载电流值,每个频率的负载电流值作为负载的运行速率的函数 在每个负载设备上的负载的负载,以及馈送系统的负载运行状态是基于建模数据与卡车线路中的负载电流的每个频率的测量值的比较来估计的。 而负载的运行速率是在任意显着点处的操作量到额定值的速率。 版权所有(C)2006,JPO&NCIPI
    • 8. 发明专利
    • Load operation status monitoring apparatus
    • 负载运行状态监控装置
    • JP2006155200A
    • 2006-06-15
    • JP2004344383
    • 2004-11-29
    • Fuji Electric Systems Co LtdToyota 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
    • SATO SUSUMUYUTANI KOJITANABE KINYAKUWAYAMA JINPEINAKAGAKI YUKIKUWABARA KATSUMIAOYAMA KEN
    • G05B23/02H04Q9/00
    • PROBLEM TO BE SOLVED: To correctly monitor a load operation status without erroneous determination even when time variation exists in the load operation status. SOLUTION: A load operation status monitoring apparatus comprises a measurement means of change in the amount of consumed electricity to measure the amount of the consumed electricity of a power supply system in order to measure the change in the amount of the consumed electricity per predetermined period, a change pattern learning means to learn a change pattern of the change in the amount per predetermined period measured by the measurement means of the change in the amount of consumed electricity, and an abnormality detection means to detect abnormalities of a load operation status by comparing the change pattern learned by the change pattern learning means with the amount of change per predetermined period in an amount of actually consumed electricity measured by the measurement means of the amount of consumed electricity. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:即使在负载运行状态存在时间变化的情况下也能正确地监视负载运行状态而不进行错误判定。 解决方案:负载运行状态监视装置包括测量装置,用于测量电力供应系统的消耗电量,以便测量消耗电量的变化量 预定时间段,变化模式学习装置,用于学习由测量装置测量的消耗电量变化所测量的每预定周期量的变化的改变模式;以及异常检测装置,用于检测负载操作状态的异常 通过将改变模式学习装置学习的变化模式与由测量装置测量的实际消耗的电量相对于每个预定时段的变化量进行比较。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Circuit current measuring instrument
    • 电路电流测量仪器
    • JP2005337989A
    • 2005-12-08
    • JP2004159715
    • 2004-05-28
    • Fuji Electric Systems Co LtdToyota 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
    • SATO SUSUMUFUKUDA EIJITSUKADA MASAOTANABE KINYAAOYAMA KENGOTO TOSHIAKINISHIKAWA HIDETAKA
    • G01R31/02
    • 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
    • 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

    • 10. 发明专利
    • Cable run switch device and electric drum device having the cable run switch device
    • 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
    • JP2006156103A
    • 2006-06-15
    • JP2004344382
    • 2004-11-29
    • Fuji Electric Systems Co LtdToyota 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
    • SATO SUSUMUTSUKADA MASAOTANABE KINYAKITAGAWA TATSUYAAOYAMA KEN
    • H01H9/54H01R13/46
    • 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
    • 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