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    Dry-Type Transformer Arc Resistant Enclosure Having Pressure Relief Structure
    1.
    发明申请
    Dry-Type Transformer Arc Resistant Enclosure Having Pressure Relief Structure 审中-公开
    具有减压结构的干式变压器抗弧外壳

    公开(公告)号：US20140166329A1

    公开(公告)日：2014-06-19

    申请号：US13716241

    申请日：2012-12-17

    Applicant: ABB TECHNOLOGY AG

    Inventor： Robert C. Ballard ,  Edgar A. Wimmer, JR.

    IPC: H05K5/02 ,  F16K15/00

    CPC classification number: F16K15/00 ,  H01F27/02 ,  Y10T137/0396

    Abstract: An enclosure for a dry-type transformer includes a bottom wall, a plurality of sidewalls coupled to and extending from the bottom wall, and a top wall coupled to the sidewalls so as to be spaced from the bottom wall. The top wall includes an opening therein. The bottom wall, sidewalls and top wall define an enclosed space for housing a dry-type transformer. Pressure relief structure is associated with the top wall and has at least one flap constructed and arranged in a closed position, to cover the opening. In the event an arc flash occurs in the enclosure creating gas pressure in the enclosure, the flap is constructed and arranged to move from the closed position to an opened position due to the gas pressure acting thereon, permitting the gas pressure to escape from the top of the enclosure through the opening.

    Abstract translation: 用于干式变压器的外壳包括底壁，耦合到底壁并从底壁延伸的多个侧壁，以及耦合到侧壁以与底壁间隔开的顶壁。 顶壁包括其中的开口。 底壁，侧壁和顶壁限定了用于容纳干式变压器的封闭空间。 压力释放结构与顶壁相关联并且具有构造和布置在关闭位置以覆盖开口的至少一个挡板。 如果在外壳中发生电弧闪光，产生外壳中的气体压力，则翼片被构造和布置成由于作用在其上的气体压力而从关闭位置移动到打开位置，允许气体压力从顶部逸出 的外壳通过开口。

    Fast Transient Mitigator Circuit Integrated Within A Vacuum Cast Transformer
    4.
    发明申请
    Fast Transient Mitigator Circuit Integrated Within A Vacuum Cast Transformer 审中-公开
    快速瞬态减速电路集成在真空变压器内

    公开(公告)号：US20130147589A1

    公开(公告)日：2013-06-13

    申请号：US13709119

    申请日：2012-12-10

    Applicant: ABB TECHNOLOGY AG

    Inventor： Charles W. Johnson ,  Robert C. Ballard ,  David S. Vinson ,  Marek Florkowski ,  Wojciech Piasecki

    IPC: H01F27/02 ,  H01F41/00

    CPC classification number: H01F27/022 ,  H01F27/34 ,  H01F30/06 ,  H01F41/005 ,  Y10T29/49073

    Abstract: A transformer (10) includes a ferromagnetic core (14); winding structure (12) mounted on the core; electrical terminals (40, 40′) connected to the winding structure; a fast transient mitigator circuit (52) including an impedance circuit serially connected between one of the terminals and the winding structure, and a capacitor connected from the one terminal to external ground. The mitigator circuit is constructed and arranged to reduce a frequency spectrum and magnitude of fast transients. An encasement (16), of an insulating resin, commonly encapsulates the core, the winding structure and at least the impedance circuit of the mitigator circuit.

    Abstract translation: 变压器（10）包括铁磁芯（14）; 缠绕结构（12）安装在芯上; 连接到绕组结构的电端子（40,40'）; 包括串联连接在一个端子和绕组结构之间的阻抗电路的快速瞬态缓冲电路（52），以及从该一个端子连接到外部接地的电容器。 缓冲器电路被构造和布置以减少快速瞬变的频谱和幅度。 绝缘树脂的封装（16）通常封装芯，绕组结构和至少阻抗电路的阻抗电路。

    Radial Drop Winding For Open-Wound Medium Voltage Dry Type Transformers
    8.
    发明申请
    Radial Drop Winding For Open-Wound Medium Voltage Dry Type Transformers 审中-公开
    用于开式中压干式变压器的径向放线绕组

    公开(公告)号：US20140361861A1

    公开(公告)日：2014-12-11

    申请号：US13914669

    申请日：2013-06-11

    Applicant: ABB Technology AG

    Inventor： Robert C. Ballard ,  Ryan Christian Tyler Alkire ,  Charles W. Johnson, Jr. ,  Charlie H. Sarver

    IPC: H01F5/02 ,  H01F41/06

    CPC classification number: H01F5/02 ,  H01F27/306 ,  H01F27/32 ,  H01F41/086 ,  H01F41/098

    Abstract: A method provides a medium voltage radial drop winding for an open wound transformers. The method arranges a plurality of non-electrically conductive supports to extend outwardly from a periphery of an imaginary geometric shape so as to define an interior space. Each support includes a pair of opposing legs disposed in spaced relation and a bottom leg coupling the opposing legs to define at least one elongated slot between the opposing legs. Each slot has an open end. Conductive wire is dropped into the open end of each of the slots to substantially fill the slots and define at least one generally cylindrical winding segment carried by the supports.

    Abstract translation: 一种方法为开式绕组变压器提供中压径向放电绕组。 该方法将多个非导电支撑件从虚构几何形状的外围向外延伸，以便限定内部空间。 每个支撑件包括一对以相互间隔的关系设置的相对的腿和连接相对的腿的底部腿，以在相对的腿之间限定至少一个细长槽。 每个插槽都有一个开口端。 导电线落入每个槽的开口端，以基本上填充槽并且限定由支撑件承载的至少一个大致圆柱形的绕组段。

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