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 。

    DEVICE AND METHOD FOR DETERMINING PARTIAL DISCHARGES AT AN ELECTRICAL COMPONENT
    2.
    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。

    Method and device for monitoring a sheath voltage arrester of a cable system
    3.
    发明授权
    Method and device for monitoring a sheath voltage arrester of a cable system 有权
    用于监测电缆系统护套电压避雷器的方法和装置

    公开(公告)号:US09146268B2

    公开(公告)日:2015-09-29

    申请号:US13151006

    申请日:2011-06-01

    IPC分类号: H01C7/102 G01R31/12

    CPC分类号: G01R31/1236

    摘要: Method and device for monitoring the status of a sheath voltage arrester of a cable system, a verification signal being supplied to a measuring loop which comprises the sheath voltage arrester and a measurement signal which is subsequently produced in accordance with the frequency-dependent impedance of the sheath voltage arrester being measured at the measuring loop in order to establish the status of the sheath voltage arrester by evaluating the measurement signal.

    摘要翻译: 用于监测电缆系统的护套电压避雷器的状态的方法和装置,提供给包括护套电压避雷器的测量回路的验证信号和随后根据该电压系统的频率相关阻抗产生的测量信号 在测量回路上测量护套电压避雷器,以通过评估测量信号建立护套电压避雷器的状态。

    Apparatus and method for generating a defined charge pulse for carrying out a partial discharge measurement
    4.
    发明授权
    Apparatus and method for generating a defined charge pulse for carrying out a partial discharge measurement 失效
    用于产生用于进行局部放电测量的定义的充电脉冲的装置和方法

    公开(公告)号:US08575943B2

    公开(公告)日:2013-11-05

    申请号:US12747296

    申请日:2008-10-27

    IPC分类号: G01R31/08

    CPC分类号: G01R31/14

    摘要: A calibrator apparatus for calibrating the performance of partial discharge measurements at electrical components, such as high voltage cables or transformators, comprises a housing (1) and an external electrode (4) to be mounted at the housing (1). A control unit (2) generates a defined charge pulse (QS) depending on a stray capacitance (CS) of the external electrode (4) against ground, which is supplied to the electrical component.

    摘要翻译: 用于校准诸如高压电缆或变压器的电气部件的局部放电测量的性能的校准器装置包括要安装在壳体(1)上的壳体(1)和外部电极(4)。 控制单元(2)根据被提供给电气部件的外部电极(4)的接地的杂散电容(CS)产生定义的充电脉冲(QS)。

    METHOD AND DEVICE FOR MONITORING A SHEATH VOLTAGE ARRESTER OF A CABLE SYSTEM
    5.
    发明申请
    METHOD AND DEVICE FOR MONITORING A SHEATH VOLTAGE ARRESTER OF A CABLE SYSTEM 有权
    用于监测电缆系统的电源电压报警器的方法和装置

    公开(公告)号:US20110298475A1

    公开(公告)日:2011-12-08

    申请号:US13151006

    申请日:2011-06-01

    IPC分类号: G01R27/16

    CPC分类号: G01R31/1236

    摘要: Method and device for monitoring the status of a sheath voltage arrester of a cable system, a verification signal being supplied to a measuring loop which comprises the sheath voltage arrester and a measurement signal which is subsequently produced in accordance with the frequency-dependent impedance of the sheath voltage arrester being measured at the measuring loop in order to establish the status of the sheath voltage arrester by evaluating the measurement signal.

    摘要翻译: 用于监测电缆系统的护套电压避雷器的状态的方法和装置,提供给包括护套电压避雷器的测量回路的验证信号和随后根据所述电压的频率相关阻抗产生的测量信号 在测量回路上测量护套电压避雷器,以通过评估测量信号建立护套电压避雷器的状态。

    APPARATUS AND METHOD FOR GENERATING A DEFINED CHARGE PULSE FOR CARRYING OUT A PARTIAL DISCHARGE MEASUREMENT
    6.
    发明申请
    APPARATUS AND METHOD FOR GENERATING A DEFINED CHARGE PULSE FOR CARRYING OUT A PARTIAL DISCHARGE MEASUREMENT 失效
    用于产生定义的充电脉冲以进行部分放电测量的装置和方法

    公开(公告)号:US20100295555A1

    公开(公告)日:2010-11-25

    申请号:US12747296

    申请日:2008-10-27

    IPC分类号: G01R35/00

    CPC分类号: G01R31/14

    摘要: A calibrator apparatus for calibrating the performance of partial discharge measurements at electrical components, such as high voltage cables or transformators, comprises a housing (1) and an external electrode (4) to be mounted at the housing (1). A control unit (2) generates a defined charge pulse (QS) depending on a stray capacitance (CS) of the external electrode (4) against ground, which is supplied to the electrical component.

    摘要翻译: 用于校准诸如高压电缆或变压器的电气部件的局部放电测量的性能的校准器装置包括要安装在壳体(1)上的壳体(1)和外部电极(4)。 控制单元(2)根据被提供给电气部件的外部电极(4)的接地的杂散电容(CS)产生定义的充电脉冲(QS)。

    Device and method for determining partial discharges at an electrical component
    7.
    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。

    METHOD OF CALIBRATING A PARTIAL DISCHARGE MEASURING DEVICE
    8.
    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 。