Method of calibrating a partial discharge measuring device
    1.
    发明授权
    Method of calibrating a partial discharge measuring device 有权
    校准局部放电测量装置的方法

    公开(公告)号:US08669773B2

    公开(公告)日:2014-03-11

    申请号:US13034509

    申请日:2011-02-24

    IPC分类号: G01R35/00 G01R31/00

    摘要: This invention concerns a method and devices for calibrating a partial discharge measuring device and for locating faults on cables. In the method, calibration signals, which can include a band-limited white noise, are used with a periodically repeated signal course. By averaging over a predetermined period duration (T) of the calibration signal, it is possible, in the case of a partial discharge measurement, to recalibrate the measuring device continuously during the measurement, and additionally on cables to determine the fault location with great precision.

    摘要翻译: 本发明涉及用于校准局部放电测量装置和定位电缆故障的方法和装置。 在该方法中,可以包括带限制的白噪声的校准信号与周期性重复的信号路线一起使用。 通过平均校准信号的预定周期(T),在局部放电测量的情况下,可以在测量期间连续重新校准测量设备,并且还可以在电缆上以高精度确定故障位置 。

    METHOD OF CALIBRATING A PARTIAL DISCHARGE MEASURING DEVICE
    2.
    发明申请
    METHOD OF CALIBRATING A PARTIAL DISCHARGE MEASURING DEVICE 有权
    校准部分放电测量装置的方法

    公开(公告)号:US20110204899A1

    公开(公告)日:2011-08-25

    申请号:US13034509

    申请日:2011-02-24

    IPC分类号: G01R31/08 G01R35/00

    摘要: This invention concerns a method and devices for calibrating a partial discharge measuring device and for locating faults on cables. In the method, calibration signals, which can include a band-limited white noise, are used with a periodically repeated signal course. By averaging over a predetermined period duration (T) of the calibration signal, it is possible, in the case of a partial discharge measurement, to recalibrate the measuring device continuously during the measurement, and additionally on cables to determine the fault location with great precision.

    摘要翻译: 本发明涉及用于校准局部放电测量装置和定位电缆故障的方法和装置。 在该方法中,可以包括带限制的白噪声的校准信号与周期性重复的信号路线一起使用。 通过平均校准信号的预定周期(T),在局部放电测量的情况下,可以在测量期间连续重新校准测量设备,并且还可以在电缆上以高精度确定故障位置 。

    Device and method for determining partial discharges at an electrical component
    3.
    发明授权
    Device and method for determining partial discharges at an electrical component 有权
    用于确定电气部件的局部放电的装置和方法

    公开(公告)号:US08760171B2

    公开(公告)日:2014-06-24

    申请号:US13142920

    申请日:2009-12-23

    IPC分类号: G01R31/02

    CPC分类号: G01R31/1272

    摘要: The present invention relates to a method for determining partial discharges at an electrical component (10). In the case of the method, an electrical signal that comprises partial discharge pulses due to the partial discharges at the electrical component (10) is detected. Through filtering of the electrical signal by means of n filters (18-20) having n differing filter characteristics, n filtered partial discharge signals are generated. Respectively one of the filtered partial discharge signals is assigned, respectively, to one of the n filters (18-20), n being greater than or equal to two. Finally, the partial discharges are determined by linking the n filtered partial discharge signals.

    摘要翻译: 本发明涉及一种用于确定电气部件(10)处的局部放电的方法。 在该方法的情况下,检测由于在电气部件(10)处的局部放电而包括局部放电脉冲的电信号。 通过利用具有n个不同滤波器特性的n个滤波器(18-20)对电信号进行滤波,产生n个滤波的局部放电信号。 分别将滤波的局部放电信号之一分配给n个滤波器(18-20)中的一个,n大于或等于2。 最后,通过连接n个滤波的局部放电信号来确定局部放电。

    DEVICE AND METHOD FOR DETERMINING PARTIAL DISCHARGES AT AN ELECTRICAL COMPONENT
    4.
    发明申请
    DEVICE AND METHOD FOR DETERMINING PARTIAL DISCHARGES AT AN ELECTRICAL COMPONENT 有权
    用于确定电气部件的部分放电的装置和方法

    公开(公告)号:US20110291666A1

    公开(公告)日:2011-12-01

    申请号:US13142920

    申请日:2009-12-12

    IPC分类号: G01R31/02

    CPC分类号: G01R31/1272

    摘要: The present invention relates to a method for determining partial discharges at an electrical component (10). In the case of the method, an electrical signal that comprises partial discharge pulses due to the partial discharges at the electrical component (10) is detected. Through filtering of the electrical signal by means of n filters (18-20) having n differing filter characteristics, n filtered partial discharge signals are generated. Respectively one of the filtered partial discharge signals is assigned, respectively, to one of the n filters (18-20), n being greater than or equal to two. Finally, the partial discharges are determined by linking the n filtered partial discharge signals.

    摘要翻译: 本发明涉及一种用于确定电气部件(10)处的局部放电的方法。 在该方法的情况下,检测由于在电气部件(10)处的局部放电而包括局部放电脉冲的电信号。 通过利用具有n个不同滤波器特性的n个滤波器(18-20)对电信号进行滤波,产生n个滤波的局部放电信号。 分别将滤波的局部放电信号之一分配给n个滤波器(18-20)中的一个,n大于或等于2。 最后,通过连接n个滤波的局部放电信号来确定局部放电。