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    Element and device for detecting internal faults in an insulating gas charged electrical apparatus
    1.
    发明公开
    Element and device for detecting internal faults in an insulating gas charged electrical apparatus 失效
    元件和用于在电气设备故障检测装置中填充有绝缘的。

    公开(公告)号：EP0277623A2

    公开(公告)日：1988-08-10

    申请号：EP88101413.8

    申请日：1988-02-01

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Yoshioka, Takeo Itami Seisakusho Mitsubishi ,  Minagawa, Tadao Itami Seisakusho Mitsubishi ,  Suzuki, Toshihiro Itami Seisakusho Mitsubishi ,  Yamasaki, Ichiro Itami Seisakusho Mitsubishi ,  Matsushita, Yoshifumi Itami Seisakusho Mitsubishi

    IPC分类号： G01N27/12

    CPC分类号： G01N27/041 ,  G01N17/00

    摘要： An element (30) for detecting internal faults in an insulating gas charged electrical apparatus comprises a substrate (31) disposed in the electrical apparatus charged with an insulating gas, a pair of electrodes (32) disposed on the substrate (31), and a thin metal film (33) covering the pair of electrodes (32) and the exposed surface of the substrate (31). This film (33) is capable of producing fluorides with low conductivity upon reacting with a decomposed gas produced by internal faults of the electrical apparatus. Since the thin metal film (33) exhibits high response characteristics readily in reaction with even a trace amount of a decomposed gas, it is possible to detect at an early time faults occuring in the electrical apparatus, such as a partial discharge or local heating. In addition, a device for detecting internal faults in an insulating gas charged electrical apparatus using the internal fault detection element (30) utilizes an optical signal for transmitting signals. Accordingly, the device is free from electromagnetically induced interference and is capable of remote monitoring by making use of the low level of loss in signal transmission.

    摘要翻译： 在带电的电气设备绝缘气体检测在内部故障的元件（30）包括一个基片电荷的（31）中的电气设备设置有在绝缘气体，设置在所述基板（31）的一对电极（32），和一个 薄金属膜 - （33）覆盖所述一对电极（32）和基片的暴露的表面（31）。 这个电影（33）是能够在与由电气装置的内部故障所产生的分解气体反应来制造具有低导电性氟化物。 由于薄金属膜 - （33）在与连分解气体的微量反应随手表现出高的响应特性，因此能够在早期时间故障在电气设备存在的，检查作为部分放电或局部加热来检测。 另外，对于使用内部故障检测元件（30）在绝缘气体带电的电气设备检测在内部故障的设备利用在用于传输信号的光信号。 因此，该装置是从电磁感应干扰和是通过利用损失的低电平的信号传输能够远程监控。

    Lightning arrester monitor
    3.
    发明公开
    Lightning arrester monitor 失效
    Blitzschutzüberwachungsanlage。

    公开(公告)号：EP0343658A2

    公开(公告)日：1989-11-29

    申请号：EP89109431.0

    申请日：1989-05-24

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Yoshioka, Takeo Itami Seisakusho Mitsubishi ,  Kobayashi, Masahiro Itami Seisakusho Mitsubishi ,  Minagawa, Tadao Itami Seisakusho Mitsubishi ,  Ujita, Katsu Itami Seisakusho Mitsubishi

    IPC分类号： H02G13/00

    CPC分类号： H02G13/00 ,  H02G13/60 ,  H02H9/042

    摘要： A lightning arrester monitor which comprises an oxygen gas sensor (10) provided in a lightning arrester having a zinc-­oxide-type element made of zinc oxide, the main component thereof, and other oxides added thereto; the oxygen gas sensor (10) measures the oxygen concentration of the element which increases as degradation thereof goes on. The monitor makes it possible to assess degradation of the zinc-oxide-­type element with ease, without requiring any complicated electrical circuit for detecting leakage current.

    摘要翻译： 一种避雷器监视器，包括设置在具有由氧化锌制成的氧化锌型元件及其主要成分和其他氧化物的避雷器中的氧气传感器（10） 氧气传感器（10）测量元件的氧浓度随着其劣化而增加。 监视器使得可以容易地评估氧化锌类元件的劣化，而不需要用于检测泄漏电流的任何复杂的电路。