A NON-LIQUID IMMERSED TRANSFORMER
    2.
    发明公开

    公开(公告)号:EP3780035A1

    公开(公告)日:2021-02-17

    申请号:EP19382713.6

    申请日:2019-08-14

    申请人: ABB Schweiz AG

    IPC分类号: H01F27/16 H01F27/28

    摘要: A non-liquid immersed transformer is provided. The transformer comprises a magnetic core and a coil winding forming a plurality of winding turns around the magnetic core and a cooling system. The cooling system comprises a heat exchanger, a main feeding pipe and a main return pipe, and a cooling pipe for the flow of a cooling fluid. The cooling pipe extends at least partly along the coil winding between a first point adjacent to an end of the coil winding, and a second point adjacent to the other end of the coil winding. The cooling pipe also comprises a plurality of convolutions to extend the path of the cooling fluid between one end of the winding and one of the main feeding pipe and the main return pipe

    A NON-LIQUID IMMERSED TRANSFORMER
    5.
    发明公开

    公开(公告)号:EP3780034A1

    公开(公告)日:2021-02-17

    申请号:EP19382712.8

    申请日:2019-08-14

    申请人: ABB Schweiz AG

    IPC分类号: H01F27/16

    摘要: A non-liquid immersed transformer is provided. The transformer comprises a magnetic core and a coil winding forming a plurality of winding turns around the magnetic core; a cooling system and a first conductive connector. The cooling system comprises a cooling pipe for the flow of a cooling fluid, the cooling pipe extending along the coil winding and comprising a first point adjacent to a turn of the coil winding, and a second point adjacent to another turn of the coil winding. The conductive connector is arranged at one of the first and second points, to electrically connect an inner side of the cooling pipe with a turn of the coil winding.

    HIGH VOLTAGE WINDING AND A HIGH VOLTAGE ELECTROMAGNETIC INDUCTION DEVICE

    公开(公告)号:EP3379548A1

    公开(公告)日:2018-09-26

    申请号:EP17162855.5

    申请日:2017-03-24

    申请人: ABB Schweiz AG

    IPC分类号: H01F27/28 H01F27/32

    摘要: The present disclosure relates to a high voltage winding (1) for a single electrical phase of a high voltage electromagnetic induction device, wherein the high voltage winding (1) comprises: a first winding part (3), and a second winding part (5), wherein the first winding part (3) comprises: a first conductor, a first solid electrical insulator circumferentially enclosing the first conductor, and a first semi-conductive sheath circumferentially enclosing the first solid electrical insulator, wherein the first semi-conductive sheath is earthed or connected to an electric potential that is lower than a rated voltage of the high voltage winding (1), and wherein the second winding part (5) comprises: a second conductor, and a second solid electrical insulator circumferentially enclosing the second conductor and forming an outermost layer of the second winding part.

    COOLING ARRANGEMENT
    8.
    发明公开
    COOLING ARRANGEMENT 审中-公开
    冷却装置

    公开(公告)号:EP3255644A1

    公开(公告)日:2017-12-13

    申请号:EP16173947.9

    申请日:2016-06-10

    申请人: ABB Schweiz AG

    IPC分类号: H01F27/08 H01F27/28 H01F27/36

    摘要: Cooling arrangement for a dry-type transformer, the arrangement comprising: a blowing equipment configured to blow a gas flow, an opening positionable in a clamping structure of the transformer, the opening being configured to allow the gas flow to pass from the blowing equipment towards a winding of the transformer, so that the winding is properly cooled, the opening comprising an electric protecting means for dielectric protection of the clamping structure; a transformer comprising such cooling arrangement is also disclosed.

    摘要翻译: 用于干式变压器的冷却装置,所述装置包括:吹气设备,所述吹气设备构造成吹气流,开口可定位在所述变压器的夹紧结构中,所述开口构造成允许所述气流从所述吹气设备朝向 变压器的绕组,以便绕组被适当地冷却,开口包括用于夹紧结构的绝缘保护的电保护装置; 还公开了包括这种冷却装置的变压器。