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    • 13. 发明申请
    • DEVICE AND METHOD FOR MONITORING A CAPACITOR BUSHING
    • 装置和用于监控电容器实现
    • WO0169272A3
    • 2001-12-27
    • PCT/DE0100936
    • 2001-03-06
    • HSP HOCHSPANNUNGSGERAETE PORZKOCH NORBERT
    • KOCH NORBERT
    • G01R15/06G01R15/16G01R27/26G01R31/12H01B17/28
    • G01R31/1227G01R15/06G01R15/16G01R27/2605G01R31/028
    • The invention relates to a method for monitoring a capacitor bushing (1) to which an electrical operating voltage (UB) is applied and in which a voltage divider is formed with an electrically conductive insert (4), whereby at least one measured value (UM1) of an electrical measured quantity (UM) is recorded and stored by using a measuring tap (7), which is connected to the insert (4), and by using earth potential. The aim of the invention is to improve the method so that it is only slightly influenced by changes in the operating voltage. To this end, the impedance (ZE) between the measuring tap (7) and the earth potential is modified after recording the at least one measured value (UM1), and at least one signal value (US1) of a measurement signal (US) subsequently formed is recorded and stored using the measuring tap (7) and the earth potential. The temporal interval between the time of recording of the measured value (UM1) and the time of recording of the signal value (US1) is measured in such a manner that a change in the operating voltage (UB), which potentially occurs between both times, is negligible. The invention also relates to a device for monitoring a capacitor bushing.
    • 本发明涉及一种方法,用于监测的电工作电压(UB)施加电容器套管(1),其特征在于,(4)形成的导电性插入物的分压器,连接到与(4)测定所述插入抽头(7) 检测至少一个测量值和地电势和电测量的量(UM)的存储(UM1)。 为了改进该方法,使得它不易受在工作电压的变化的影响,在检测到所述至少一个测量值(UM1)的,测量抽头(7)和接地电位之间的阻抗(ZE)被改变,并且该测量分接头(7)和 地电位微量-几十检测信号值的则形成测量信号的(US1)(US),并存储,其中记录一个测量值(UM1)和记录一个信号值的时间(US1)被设定尺寸的时间之间的时间间隔 是,一个任选地在工作电压(UB)是可忽略的时间变化的两个点之间进行。 本发明还涉及一种装置,用于监测电容器衬套