Electrically insulated coils and a method of manufacturing thereof
    8.
    发明授权
    Electrically insulated coils and a method of manufacturing thereof 失效
    电绝缘线圈及其制造方法

    公开(公告)号:US5416373A

    公开(公告)日:1995-05-16

    申请号:US66446

    申请日:1993-05-25

    摘要: Electrically insulated coils having excellent moisture resistance or water resistance utilize a simple material that is readily available. Using a simple method of manufacture, rotating electric machines such as motors for driving pumps, traction motors for rolling stocks and the like suitable for use in the outdoors may be built with the electrically insulated coils. The coils are coated with a fluorine-containing coating at least on portions which are exposed out of the side of the core. Since a uniform hydrophobic layer utilizing the repellent action of fluorine atoms is capable of being provided on the surface of the electrically insulated coils, the electrically insulated coils and the rotating electrical machines incorporating them feature excellent moisture resistance and water resistance.

    摘要翻译: 具有优异的耐湿性或耐水性的电绝缘线圈使用易于获得的简单材料。 使用简单的制造方法,可以用电绝缘线圈构建旋转电机,例如用于驱动泵的电动机,适用于户外的用于滚动轴承的牵引电动机等。 线圈至少在从芯侧露出的部分上涂覆有含氟涂层。 由于能够在电绝缘线圈的表面上设置利用氟原子的排斥作用的均匀的疏水层,所以电绝缘线圈和包含它们的旋转电机具有优异的耐湿性和耐水性。

    System for monitoring abnormality of oil-filled electric devices
    10.
    发明授权
    System for monitoring abnormality of oil-filled electric devices 失效
    充油电器异常监控系统

    公开(公告)号:US4402211A

    公开(公告)日:1983-09-06

    申请号:US265656

    申请日:1981-05-20

    摘要: A system for monitoring an abnormality of an oil-filled electric device by detecting the components of the gas dissolved in the insulating oil. A gas-in-oil separator which separates the gas from the insulating oil, a gas reservoir where the separated gas is collected, an air feeder which supplies air for delivering out the gas in said gas reservoir, a separating column packed with a gas separating filler whereby the gas supplied from the gas reservoir is separated into the components, a combustible gas detector element disposed in a case which connects at its one end to the outlet of said separating column, and a change-over valve disposed at a location connecting said gas reservoir, are provided. The air feeder and said separating column are adapted to switch a route passing the air from the air feeder into the separating column along with the gas via the gas reservoir to or from a route passing the air directly into the separating column. This system is capable of easily detecting the components in the gas in the insulating oil to allow monitoring of an abnormality with high reliability. Also, according to the system of this invention, at least the components CH.sub. 4 and H.sub.2 in the separated gas are measured separately, and in case it is judged that an abnormality is present, the type of such abnormality is judged from the ratio of said components.

    摘要翻译: 一种用于通过检测溶解在绝缘油中的气体的组分来监测充油电气装置的异常的系统。 一种气体分离器,其将气体与绝缘油分离,收集分离的气体的气体储存器,供给用于输出所述气体储存器中的气体的空气的空气供给器,填充有气体分离的分离塔 填充剂,由此从气体储存器供应的气体被分离成部件,设置在其一端连接到所述分离塔的出口的壳体中的可燃气体检测器元件和设置在连接所述分离柱的位置处的转换阀 气藏。 空气供给器和所述分离柱适于将通过空气供给器的空气与气体一起通过气体储存器从空气进料器转移到分离塔中的路线或从通过空气的路线直接进入分离塔。 该系统能够容易地检测绝缘油中的气体中的组分,以允许以高可靠性监测异常。 此外,根据本发明的系统,至少分离出的气体中的成分CH 4和H 2分别进行测定,在判断为存在异常的情况下,根据所述 组件。