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    Diagnostic system for protecting a tap-changer
    4.
    发明公开
    Diagnostic system for protecting a tap-changer 审中-公开
    诊断系统zumSchützeneines Stufenschalters

    公开(公告)号：EP2278428A2

    公开(公告)日：2011-01-26

    申请号：EP10188194.4

    申请日：2007-03-15

    申请人： ABB Technology Ltd

    发明人： Stenestam, Bengt-Olof ,  Andersson, Gunnar

    IPC分类号： G05F1/147 ,  H01F29/04 ,  H01H9/00 ,  H02H7/055 ,  G01R31/327

    摘要： A universal control and diagnostic system for a transformer that may be retrofit with existing control and tap-changer equipment, the system providing for remote monitoring and control of the equipment and for measuring various criteria associated with the tap-changer to substantially minimize damage to the equipment during a maneuver and for substantially avoiding carbonization of a connected contact.

    摘要翻译： 用于变压器的通用控制和诊断系统，可以用现有的控制和分接开关设备进行改造，该系统提供对设备的远程监控和控制，并用于测量与分接开关相关的各种标准，从而大大减少对 设备在操作过程中并且大大地避免了连接的接触件的碳化。

    MONITORING A TRANSFORMER COMPRISING A TAP CHANGER
    7.
    发明公开
    MONITORING A TRANSFORMER COMPRISING A TAP CHANGER 有权
    监测包含换头器的变压器

    公开(公告)号：EP3288134A1

    公开(公告)日：2018-02-28

    申请号：EP16185960.8

    申请日：2016-08-26

    申请人： ABB Schweiz AG

    发明人： BENGTSSON, Tord ,  ABEYWICKRAMA, Nilanga

    IPC分类号： H02H7/055 ,  H01F29/02

    摘要： The invention is concerned with a monitoring device, method and computer program product for monitoring a transformer comprising a tap changer. The transformer has at least two magnetically coupled windings and a tap changer comprising impedance elements and a changeover switch configured to gradually pass the impedance elements when changing between two tap changer positions during a tap change operation. The method is performed in the monitoring device and comprises: obtaining (50) waveforms of measured power transmission properties recorded at the first and second transformer sides, processing (52, 54, 56) the recorded waveforms for obtaining at least one waveform (Ploss) representing a tap change operation, and extracting (56, 60) information indicative of the performance of the tap change from the at least one waveform that represents the tap change operation.

    摘要翻译： 本发明涉及用于监测包括抽头变换器的变压器的监测装置，方法和计算机程序产品。 该变压器具有至少两个磁耦合绕组和抽头转换器，该抽头转换器包括阻抗元件和转换开关，该转换开关被配置为在抽头转换操作期间在两个抽头转换器位置之间改变时逐渐通过阻抗元件。 该方法在监测装置中执行并且包括：获得（50）记录在第一变压器侧和第二变压器侧的测量的电力传输属性的波形，处理（52,54,56）记录的波形以获得至少一个波形（Ploss） 表示抽头变换操作，以及从表示抽头变换操作的至少一个波形中提取（56,60）指示抽头变换的性能的信息。