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    Oil immersed electrical apparatus
    1.
    发明授权
    Oil immersed electrical apparatus 有权
    油浸式电气设备

    公开(公告)号：US08305179B2

    公开(公告)日：2012-11-06

    申请号：US12999919

    申请日：2008-09-26

    申请人： Eiichi Nagao ,  Kentaro Taninouchi ,  Noboru Hosokawa ,  Tsuyoshi Amimoto ,  Kozo Tachibana ,  Takanori Sone ,  Junji Tanimura ,  Satoru Toyama

    发明人： Eiichi Nagao ,  Kentaro Taninouchi ,  Noboru Hosokawa ,  Tsuyoshi Amimoto ,  Kozo Tachibana ,  Takanori Sone ,  Junji Tanimura ,  Satoru Toyama

    IPC分类号： H01F27/10 ,  H01H31/12

    CPC分类号： H01F27/14 ,  G01N33/287 ,  H01F27/402

    摘要： An oil immersed electrical apparatus such as an oil immersed transformer that can detect copper sulfide precipitated on coil insulating paper is provided. In the oil immersed transformer in which a coil with its surface covered by insulating paper is arranged in a container filled with insulating oil, a detection member is prepared by providing two electrodes on a surface of a plate-like pressboard formed of cellulose, which is a same material as that of the insulating paper, this detection member is arranged in contact with the insulating oil, and generation of copper sulfide is detected from reduction in a surface resistance between the electrodes. The temperature of the detection member is set higher than the temperature of the coil so that copper sulfide is generated thereon prior to generation of copper sulfide on a coil unit.

    摘要翻译： 提供了一种油浸式电气设备，例如可以检测在线圈绝缘纸上析出的硫化铜的油浸变压器。 在将其表面被绝缘纸覆盖的线圈布置在填充有绝缘油的容器中的油浸变压器中，通过在由纤维素形成的板状压板的表面上设置两个电极来制备检测构件，该电极为 与绝缘纸相同的材料，该检测部件被布置成与绝缘油接触，并且通过降低电极之间的表面电阻来检测硫化铜的产生。 检测部件的温度被设定为高于线圈的温度，使得在线圈单元上产生硫化铜之前产生硫化铜。

    OIL IMMERSED ELECTRICAL APPARATUS
    2.
    发明申请
    OIL IMMERSED ELECTRICAL APPARATUS 有权
    油电设备

    公开(公告)号：US20110090034A1

    公开(公告)日：2011-04-21

    申请号：US12999919

    申请日：2008-09-26

    申请人： Eiichi Nagao ,  Kentaro Taninouchi ,  Noboru Hosokawa ,  Tsuyoshi Amimoto ,  Kozo Tachibana ,  Takanori Sone ,  Junji Tanimura ,  Satoru Toyama

    发明人： Eiichi Nagao ,  Kentaro Taninouchi ,  Noboru Hosokawa ,  Tsuyoshi Amimoto ,  Kozo Tachibana ,  Takanori Sone ,  Junji Tanimura ,  Satoru Toyama

    IPC分类号： H01F27/10

    CPC分类号： H01F27/14 ,  G01N33/287 ,  H01F27/402

    摘要： An oil immersed electrical apparatus such as an oil immersed transformer that can detect copper sulfide precipitated on coil insulating paper is provided. In the oil immersed transformer in which a coil with its surface covered by insulating paper is arranged in a container filled with insulating oil, a detection member is prepared by providing two electrodes on a surface of a plate-like pressboard formed of cellulose, which is a same material as that of the insulating paper, this detection member is arranged in contact with the insulating oil, and generation of copper sulfide is detected from reduction in a surface resistance between the electrodes. The temperature of the detection member is set higher than the temperature of the coil so that copper sulfide is generated thereon prior to generation of copper sulfide on a coil unit.

    摘要翻译： 提供了一种油浸式电气设备，例如可以检测在线圈绝缘纸上析出的硫化铜的油浸变压器。 在将其表面被绝缘纸覆盖的线圈布置在填充有绝缘油的容器中的油浸变压器中，通过在由纤维素形成的板状压板的表面上设置两个电极来制备检测构件，该电极为 与绝缘纸相同的材料，该检测部件被布置成与绝缘油接触，并且通过降低电极之间的表面电阻来检测硫化铜的产生。 检测部件的温度被设定为高于线圈的温度，使得在线圈单元上产生硫化铜之前产生硫化铜。