Electric coil device for use as a transformer or the like
    15.
    发明公开
    Electric coil device for use as a transformer or the like 失效
    用作变压器或类似物的电磁线圈装置

    公开(公告)号:EP0460506A3

    公开(公告)日:1992-08-26

    申请号:EP91108699.9

    申请日:1991-05-28

    IPC分类号: H01F27/32 H01B7/02

    摘要: An electric coil device such as a transformer or a choke has one or more windings (18, 20) around a core (12). In order to dispense with the conventional insulation means that have added much to the bulk of the coil device, each winding (18, 20) is formed by a conductor wire (24) on which at least two insulating tapes (26, 28) are wound one over the other and each with an overlap. The ratio of the width ( W ₁ or W ₂) of the overlap of one of the two insulating tapes (26, 28) to the width ( T ₁ or T ₂) of said one insulating tape differs from the ratio of the width ( W ₂ or W ₁) of the overlap of the other insulating tape to the width ( T ₂ or T ₁) of said other insulating tape. Preferably, a third insulating tape may be wound overlappingly over the two insulating tapes, with the ratio of the overlap of each tape to the tape width made progressively less from the inmost toward the outmost tape.

    SYNCHRONOUS COMPENSATOR PLANT
    18.
    发明授权
    SYNCHRONOUS COMPENSATOR PLANT 失效
    SYNCHRONKOMPENSATORANLAGE

    公开(公告)号:EP0901701B1

    公开(公告)日:2003-10-01

    申请号:EP97924466.2

    申请日:1997-05-27

    申请人: ABB AB

    IPC分类号: H02K3/40

    摘要: The magnetic circuit of synchronous compensator plant is included in an electric machine which is directly connected to a high supply voltage of 20-800 kV, preferably higher than 36 kV. The electric machine is provided with solid insulation and its winding(s) is/are built up of a cable (6) intended for high voltage comprising one or more current-carrying conductors (31) with a number of strands (36) surrounded by at least one outer and one inner semiconducting layer (34, 32) and intermediate insulating layers (33). The outer semiconducting layer (34) is at earth potential. The phases of the winding are Y-connected, and the Y-point may be insulated and protected from over-voltage by means of surge arresters, or else the Y-point is earthed via a suppression filter. A procedure is used in the manufacture of a synchronous compensator for such plant, in which the cable used is threaded into the openings in the core for the magnetic circuit of the synchronous compensator.

    摘要翻译: 本发明涉及旋转异步转换器和发电机装置。 该转换器包括连接到具有第一频率f 1 1的第一AC网络的第一定子和连接到具有第二频率f 2 2的第二AC网络的第二定子。 转换器还包括根据第一和第二频率f 1,f 2 2旋转的转子装置。 定子每个包括至少一个绕组,其中每个绕组包括至少一个载流导体,并且每个绕组包括绝缘系统,其一方面包括至少两个半导体层,其中每个层构成基本上等势面, 另一方面,它们之间布置了固体绝缘。