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    A procedure to measure grounding resistances of electrical installations by measuring the loop impedance
    2.
    发明申请
    A procedure to measure grounding resistances of electrical installations by measuring the loop impedance 有权
    通过测量回路阻抗来测量电气设备的接地电阻的程序

    公开(公告)号：US20050200366A1

    公开(公告)日：2005-09-15

    申请号：US11061043

    申请日：2005-02-18

    申请人： Patrick Bougaud ,  Bernard Kantorowski ,  Daniel Arnoux ,  Axel Arnoux

    发明人： Patrick Bougaud ,  Bernard Kantorowski ,  Daniel Arnoux ,  Axel Arnoux

    IPC分类号： G01R27/18 ,  G01R27/04

    CPC分类号： G01R27/18

    摘要： A procedure to measure the grounding resistances of electrical installations by measuring the loop impedance. According to this procedure, using voltage generator transformers, a current is injected into the loop and this current is measured using current measurement transformers. Two transformers are united into a single transformer, used as impedance transformer, and the loop impedance is established by taking several measurements that allow determining and eliminating parameters of the transformer, by analysis of the measurement results.

    摘要翻译： 通过测量环路阻抗来测量电气设备的接地电阻的程序。 根据该过程，使用电压发生器变压器，将电流注入到回路中，并且使用电流测量变压器测量该电流。 两个变压器组合成一个变压器，用作阻抗变压器，通过测量结果分析，可以通过几项测量来确定和消除变压器的参数来建立回路阻抗。

    Procedure to measure grounding resistances of electrical installations by measuring the loop impedance
    7.
    发明授权
    Procedure to measure grounding resistances of electrical installations by measuring the loop impedance 有权
    通过测量回路阻抗来测量电气设备的接地电阻的程序

    公开(公告)号：US07102360B2

    公开(公告)日：2006-09-05

    申请号：US11061043

    申请日：2005-02-18

    申请人： Patrick Bougaud ,  Bernard Kantorowski ,  Daniel Arnoux ,  Axel Arnoux

    发明人： Patrick Bougaud ,  Bernard Kantorowski ,  Daniel Arnoux ,  Axel Arnoux

    IPC分类号： G01R31/08 ,  G01R31/06

    CPC分类号： G01R27/18

    摘要： A procedure to measure the grounding resistances of electrical installations by measuring the loop impedance. According to this procedure, using voltage generator transformers, a current is injected into the loop and this current is measured using current measurement transformers. Two transformers are united into a single transformer, used as impedance transformer, and the loop impedance is established by taking several measurements that allow determining and eliminating parameters of the transformer, by analysis of the measurement results.

    摘要翻译： 通过测量回路阻抗来测量电气设备的接地电阻的程序。 根据该过程，使用电压发生器变压器，将电流注入到回路中，并且使用电流测量变压器测量该电流。 两个变压器组合成一个变压器，用作阻抗变压器，通过测量结果分析，可以通过几项测量来确定和消除变压器的参数来建立回路阻抗。

    Process for identification of the direction of rotation of two periodic electrical signals at the same frequency
    10.
    发明授权
    Process for identification of the direction of rotation of two periodic electrical signals at the same frequency 有权
    在相同频率下识别两个周期性电信号的旋转方向的过程

    公开(公告)号：US07337083B2

    公开(公告)日：2008-02-26

    申请号：US10873637

    申请日：2004-06-23

    申请人： Daniel Arnoux ,  Axel Arnoux ,  Jean Kressic

    发明人： Daniel Arnoux ,  Axel Arnoux ,  Jean Kressic

    IPC分类号： G06F19/00 ,  G01R25/00

    CPC分类号： G01R29/18

    摘要： A process and apparatus for identification of the direction of rotation of two periodic electrical signals present on two electrical conductors, particularly of a three-phase power system. In this process, the signals are sampled from two conductors by two wires of the test apparatus provided with a connection to ground via a user of the apparatus. The direction of rotation is determined from information provided by the two signals. The direction of rotation is determined during the zero-crossing of the voltage between the two phase signals. The invention can be used in a apparatus for testing of the direction of rotation of the phases of a three-phase network.

    摘要翻译： 用于识别存在于两个电导体，特别是三相电力系统上的两个周期性电信号的旋转方向的过程和装置。 在这个过程中，通过装置的用户连接到地的测试装置的两条线，从两个导体采样信号。 旋转方向由两个信号提供的信息确定。 在两相信号之间的电压过零点期间确定旋转方向。 本发明可用于测试三相网络相位旋转方向的装置。