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    • 1. 发明授权
    • Electrostatic capacity measuring instrument for stator winding of
electric rotating machine
    • 电动旋转机定子绕组静电容量测量仪
    • US5682102A
    • 1997-10-28
    • US634913
    • 1996-04-19
    • Shinji TakahashiKazuo TashiroHideyuki ShimadaSusumu NaganoHiroshi Hasegawa
    • Shinji TakahashiKazuo TashiroHideyuki ShimadaSusumu NaganoHiroshi Hasegawa
    • G01M3/04G01M3/16G01R31/06G01R31/34H02K9/24H02K11/00
    • G01R31/34H02K11/20
    • An electric rotating machine comprises a rotor body of cylindrical structure and a stator body covering an outer peripheral portion of the rotor body in a non-contact fashion. The stator body includes a stator winding formed with an insulation layer and arranged radially outward of the rotor body with a clearance from the rotor body and a stator core which supports the stator winding. The electrostatic capacity of the stator winding is measured by an electrostatic capacity measuring instrument which comprises a housing having a size allowing the housing to be accommodated in the clearance between the rotor body and the stator winding, a support body detachably secured to the rotor body and adapted to support the housing within the clearance to be movable, and a measuring element mounted to the housing on the side of the housing facing the stator winding and adapted to measure electrostatic capacity of the stator winding, wherein a degree of water penetration into the insulation of the stator winding is determined based on a measurement data from the measuring element.
    • 旋转电机包括圆柱形结构的转子体和以非接触方式覆盖转子体外周部分的定子体。 定子体包括形成有绝缘层的定子绕组,并且与转子体的间隙径向向外设置,并且定子芯体支撑定子绕组。 定子绕组的静电容量通过静电电容测量仪来测量,该静电电容测量仪包括具有允许壳体容纳在转子体和定子绕组之间的间隙中的尺寸的壳体,可拆卸地固定到转子体上的支撑体, 适于将所述间隙内的壳体支撑为可移动的;以及测量元件,其安装到所述壳体的面向所述定子绕组的所述壳体侧并且适于测量所述定子绕组的静电容量,其中水渗透到所述绝缘体中的程度 基于来自测量元件的测量数据来确定定子绕组。