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Portable apparatus for in situ field stator bar insulation capacitance mapping

机译:用于现场定子线棒绝缘电容测绘的便携式设备

摘要

A capacitance mapping tool consisting of an improved capacitance probe head assembly having an inflatable electrode bladder mounted at the end of a telescoping support pole is provided for enabling a service technician to accurately position the probe head assembly between stator bars of a large electric motor or power generator from a remote location. Using the tool, capacitance measurements of insulation on stator bars can be obtained without removing the field. The tool is constructed such that it can be inserted between the field generating component (e.g., the rotor) and the stator windings of a large motor or power generator, thus, precluding the need for field removal. A bendable articulated tip section, which remains in a particular bend arrangement until manually reconfigured, is provided at one end of the tool where the capacitance measuring probe head is attached. This allows the probe head to be, preconfigured at a particular angle with respect to the support pole and the stator bars prior to inserting. The probe head includes a bladder support plate which acts as a spacer and is adapted to accept one or more additional spacer plates for changing the overall width of the probe head to adjust for different spacings between stator bars. The pole supports an electric cable from the probe electrode to a remote electric meter and an air hose to a remote fluid source for inflating/deflating the probe bladder.
机译:提供了一种由改进的电容式探头组件组成的电容映射工具,该组件具有安装在伸缩支撑杆末端的可充气电极囊,用于使维修技术人员能够将探头组件准确地定位在大型电动机或动力的定子条之间远程生成器。使用该工具,可以在不去除磁场的情况下获得定子条上绝缘体的电容测量值。该工具被构造成使得其可以被插入在大型电动机或发电机的场产生部件(例如,转子)和定子绕组之间,因此排除了去除场的需要。在工具的连接有电容测量探针头的一端提供了可弯曲的铰接式尖端部分,该尖端部分保持特定的弯曲布置直到手动重新配置为止。这允许在插入之前相对于支撑杆和定子条以特定角度预配置探头。该探针头包括用作间隔物的囊状支撑板,并适于容纳一个或多个另外的间隔板,以改变探针头的总宽度以针对定子条之间的不同间隔进行调节。电极杆支撑从探头电极到远程电表的电缆以及从软管到远程流体源的空气软管,用于为探头囊充气/放气。

著录项

  • 公开/公告号US6225813B1

    专利类型

  • 公开/公告日2001-05-01

    原文格式PDF

  • 申请/专利权人 GENERAL ELECTRIC CO.;

    申请/专利号US19980199726

  • 发明设计人 FRANK JOSEPH GARWATOSKI;

    申请日1998-11-25

  • 分类号G01R272/60;

  • 国家 US

  • 入库时间 2022-08-22 01:04:30

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