Coil end insulation for dynamoelectric machines
    2.
    发明授权
    Coil end insulation for dynamoelectric machines 失效
    用于动力电机的线圈绝缘

    公开(公告)号:US3978359A

    公开(公告)日:1976-08-31

    申请号:US519159

    申请日:1974-10-30

    IPC分类号: H02K3/38 H02K3/50 H02K3/46

    CPC分类号: H02K3/38 H02K3/505

    摘要: A construction is provided for the stator coil ends of large dynamoelectric machines such as turbine generators of the inner-cooled type which effectively insulates the ends of the gas coils and mechanically reinforces them without interfering with ventilation. An insulating vent cap is applied over the ventilating tubes at each end of each conductor. The vent caps have a soft, uncured portion and are fitted to the conductor and then impregnated with a resin and cured in place to obtain a good fit of the cap on the conductor. The complete coil ends and connections are then covered with an insulating and mechanically reinforcing tape.

    Magnetic wedge
    3.
    发明授权
    Magnetic wedge 失效
    磁楔

    公开(公告)号:US4040971A

    公开(公告)日:1977-08-09

    申请号:US646793

    申请日:1976-01-06

    IPC分类号: H02K3/493 H02K15/00 H01F1/00

    CPC分类号: H02K15/0018 H02K3/493

    摘要: A magnetic wedge is made by preparing a composition of a thermosetting resin system and magnetizable particles, placing the composition in a mold, vibrating the mold at least until air bubbles are no longer evolved from the composition, curing the composition, and fabricating the lower portion of the cured composition into the shape desired for the wedge. The vibration removes air and compacts the particles which results in a wedge having overall superior physical and magnetic properties.

    摘要翻译: 通过制备热固性树脂体系和可磁化颗粒的组合物制备磁性楔形物,将组合物放置在模具中,至少振动模具直到气泡不再从组合物放出,固化组合物,并制造下部 的固化组合物成楔形所需的形状。 振动消除空气并压实颗粒,导致楔形物具有整体优异的物理和磁性。

    Method and apparatus for insulating liquid-cooled stator coil headers
and connectors
    4.
    发明授权
    Method and apparatus for insulating liquid-cooled stator coil headers and connectors 失效
    用于绝缘液冷定子线圈头和连接器的方法和装置

    公开(公告)号:US4982122A

    公开(公告)日:1991-01-01

    申请号:US338354

    申请日:1989-04-12

    摘要: An improved method and apparatus for preventing electrical shorts between sets of stator coil headers and accompanying connections is disclosed in which a reinforced, non-conducting cover is fitted over a pair of stator coil headers, or a stator coil header and an adjacent phase connector. Thereafter, the cavity formed by the fitted cover can be filled with an insulating, solidifying or polymerizing material or resin. Use of such an apparatus insulates the entire header apparatus and prevents any accidental shorting between sets of stator coil ends.

    摘要翻译: 公开了一种用于防止定子线圈集管和相关连接件之间的电短路的改进的方法和装置,其中增强的非导电盖安装在一对定子线圈集管或定子线圈集管和相邻相位连接器上。 此后,由装配的盖形成的空腔可以填充绝缘的,固化的或聚合的材料或树脂。 使用这种装置使整个集管装置绝缘,并防止在定子线圈端部组之间的任何意外短路。

    Strand-to-strand short circuit tester
    5.
    发明授权
    Strand-to-strand short circuit tester 失效
    绞线短路测试仪

    公开(公告)号:US4842539A

    公开(公告)日:1989-06-27

    申请号:US226704

    申请日:1988-08-01

    CPC分类号: H01R13/193 G01R31/021

    摘要: A plurality of connector members are provided, each of which is shaped to fit between two adjacent strands in a column of strands on a stator winding (i.e., by manual insertion). Each connector member has a first side provided with an electrically conductive material and a second side provided with an electrically insulating material. An electrically conductive lead is electrically connected to the electrically conductive material on an associated connector member. In this manner, a plurality of electrically conductive leads are connected to an associated plurality of connector members. A plug or receptacle is provided at the opposite end of the electrically conductive leads with respect to the end connected to the connector members. Securing means are provided for pressing the strands against the connector members interposed therebetween in order to insure a conductive connection between each strand and the conductive material of a connector member. The securing means can be provided in the form of a tubular member which is adapted to slide over the column of strands and interposed connector members. A wedge-shaped member can be inserted between an inside surface of the tubular member and one end of the column of strands in order to secure the tubular member to the column of strands and to press the column of strands and interposed contact members together.

    Low-electric stress insulating wall for high voltage coils having
Roebeled strands
    6.
    发明授权
    Low-electric stress insulating wall for high voltage coils having Roebeled strands 失效
    低电压线圈的低电压应力隔离墙

    公开(公告)号:US5175396A

    公开(公告)日:1992-12-29

    申请号:US627277

    申请日:1990-12-14

    IPC分类号: H02K3/34 H02K3/40

    CPC分类号: H02K3/40 Y10S174/27

    摘要: A wall structure for insulating the exterior surface of a high voltage coil having Roebeled windings is provided that comprises an inner insulating layer formed from a hardenable epoxy material for surrounding the coil and filling void spaces on the surface of the coil created by the Roebeled windings, a ground wall layer surrounding the inner layer for grounding the wall structure, and a semiconductive layer formed from a carbon filled epoxy material integrally molded around the outer surface of the inner insulating layer for reducing the electric stress across the insulating layer and in particular across any voids remaining after the insulative layer has been applied over the Roebeled windings on the exterior of the coil. The improved wall structure advantageously increases the lifespan of high voltage coils by reducing the electric stress across the inner moulding layer, thereby reducing the probability that damaging electric arcing will ever occur in any void spaces present in this layer.

    Method and apparatus for high voltage testing of coils with grounded
insulation
    7.
    发明授权
    Method and apparatus for high voltage testing of coils with grounded insulation 失效
    具有接地绝缘的线圈的高压测试方法和装置

    公开(公告)号:US4766388A

    公开(公告)日:1988-08-23

    申请号:US3535

    申请日:1987-01-15

    IPC分类号: G01R31/06 G01R31/12

    CPC分类号: G01R31/346

    摘要: High voltage testing of stator coils having grounded insulation, end turns with ungrounded insulation, and uninsulated terminals is conducted by placing a non-conductive, preferably transparent and flexible tube over each end turn and injecting a gas, such as silicon hexaflouride SF.sub.6, having a higher breakdown voltage than air into the tube at one end, so that it flows down the tube around the end turn and out the other end. If desired, the tube can be sealed at the inlet end or both ends by flexible sleeves which are secured snugly about the end turns. Also optionally, the tube can be supported by an adjustable stand so that it does not touch the end turn.

    摘要翻译: 具有接地绝缘的定子线圈的高电压测试,具有未接地绝缘的端部匝和非绝缘端子通过在每个端部匝上放置非导电的,优选地是透明和柔性的管,并且注入诸如六氟化矽六氟化硅的气体来进行,具有 在一端具有高于空气进入管的击穿电压,使得其在管端周围向下流动并向另一端流出。 如果需要,管可以在入口端或两端通过柔性套筒密封,该套筒紧密地固定在端匝上。 还可选地,管可以由可调节支架支撑,使得其不接触端部匝。

    Stator end turn support system
    8.
    发明授权
    Stator end turn support system 失效
    定子末端支撑系统

    公开(公告)号:US4379243A

    公开(公告)日:1983-04-05

    申请号:US317099

    申请日:1981-11-02

    IPC分类号: H02K5/00 H02K3/50 H02K3/46

    CPC分类号: H02K3/505

    摘要: An end turn support structure is disclosed which permits it to be constructed with varying, preselected coefficients of expansion along its length. This characteristic allows it to expand in a similar manner to the end turns which it supports. This structure also comprises conformable members and external support apparatus that provide a means for firmly attaching the end turns to the support structure and the support structure to the stator frame.

    摘要翻译: 公开了一种端匝支撑结构,其允许其沿着其长度以变化的预选的膨胀系数构造。 该特征允许其以与其支撑的端匝类似的方式扩展。 该结构还包括适配构件和外部支撑装置,其提供用于将端匝牢固地附接到支撑结构和支撑结构到定子框架的装置。

    Stepmolding process and apparatus
    9.
    发明授权
    Stepmolding process and apparatus 失效
    步进成型工艺和装置

    公开(公告)号:US5164142A

    公开(公告)日:1992-11-17

    申请号:US763005

    申请日:1991-09-20

    IPC分类号: B29C35/16 B29C43/26 B29C43/52

    摘要: A process and apparatus are disclosed for step-molding elongated work pieces, such as generator components. A heated press includes a cooling box attached thereto, separated by a thermal insulating gasket. As a first portion of the work piece is being heat cured, a second portion extending adjacent the heated press is placed within the cooling box to prevent its being cured from residual heat of the press. After the first portion has been cured, the second portion is sequentially placed within the heated press. In this manner, the entire elongated work piece is cured and inadvertent "bumps" in the cured work piece are prevented to form the component to its desired shape.