知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

500 records (took 0.023 seconds)

    Device and Method for Reducing a Magnetic Unidirectional Flux Component in the Core of a Three-Phase Transformer
    14.
    发明申请
    Device and Method for Reducing a Magnetic Unidirectional Flux Component in the Core of a Three-Phase Transformer 审中-公开

    公开(公告)号：US20170169937A1

    公开(公告)日：2017-06-15

    申请号：US15038843

    申请日：2013-12-10

    Applicant: Siemens Aktiengesellschaft

    Inventor： Peter HAMBERGER

    IPC: H01F27/34 ,  H01F30/12

    CPC classification number: H01F27/34 ,  H01F27/38 ,  H01F30/12

    Abstract: A device for reducing a magnetic unidirectional flux component in the core of a three-phase transformer includes at least one compensation winding, which is magnetically coupled to the core of the three-phase transformer, a switch arranged electrically in a current path in series with the at least one compensation winding to feed current into the winding, where the effect of the current is directed opposite to the unidirectional flux component, and an apparatus for limiting current arranged electrically in a current path in series with the at least one compensation winding, and where two compensation windings are provided on different legs of the core of the three-phase transformer such that a greater reduction of the magnetic unidirectional flux component is achieved.

    Symmetrical step-up and step-down autotransformer delta topology
    15.
    发明授权
    Symmetrical step-up and step-down autotransformer delta topology 有权

    公开(公告)号：US09601258B2

    公开(公告)日：2017-03-21

    申请号：US14328937

    申请日：2014-07-11

    Applicant: The Boeing Company

    Inventor： Jian Huang ,  Eugene V. Solodovnik ,  Kamiar J. Karimi

    IPC: H01F30/12 ,  H01F27/29 ,  H02M7/04 ,  H01F30/02 ,  H02M7/08

    CPC classification number: H01F30/12 ,  H01F27/29 ,  H01F30/02 ,  H02M7/04 ,  H02M7/08 ,  H05K7/20927

    Abstract: A multi-phase autotransformer (10) is disclosed. The exemplary transformer includes primary windings PWA, PWB, PWC) and secondary windings (SWA1-SWA4, SWB1-SWB4, SWC1-SWC4). The primary windings are connected in a delta configuration and to a three-phase input voltage source. Each secondary winding is electrically connected to a primary winding but is magnetically coupled to a different primary winding. Three sets of secondary windings provide three three-phase outputs (350A, 350B, 350C), each of which has a voltage which is less than the three-phase input voltage, the three-phase output of each set being phase-shifted with respect to the other sets. These three sets also, collectively, provide a multi-phase output (325). Another set of secondary windings, in conjunction with the input voltage, provides another multi-phase phase output (360) which has approximately the same voltage as the three-phase input voltage.

    Fluid insulated high voltage coil
    17.
    发明授权
    Fluid insulated high voltage coil 有权
    流体绝缘高压线圈

    公开(公告)号：US09058926B2

    公开(公告)日：2015-06-16

    申请号：US14047299

    申请日：2013-10-07

    Applicant: ABB TECHNOLOGY AG

    Inventor： Dietrich Bonmann ,  Thomas Schmidt

    IPC: H01F21/02 ,  H01F27/10 ,  H01F27/02 ,  H01F21/12 ,  H01F27/04 ,  H01F29/04 ,  H01F27/12 ,  H01F30/12 ,  H01H9/00

    CPC classification number: H01F27/04 ,  H01F27/02 ,  H01F27/12 ,  H01F29/04 ,  H01F30/12 ,  H01H9/0005

    Abstract: Exemplary embodiments include a fluid insulated high voltage coil having closed tank for an insulation fluid and a high voltage coil arranged therein with at least two taps. An insulation tube extends into the tank, where the inner part of the tube is accessible from an outer side of the tank. Electric contact elements extend through the tube walls along its longitudinal axis, where at least some of the contact elements are electrically connected with the taps. A removable column-like electrical interaction device is arranged within the inner part of the insulation tube, which is electrically connected to the at least two taps by means of the contact elements.

    Abstract translation: 示例性实施例包括具有用于绝缘流体的封闭罐和其中布置有至少两个抽头的高压线圈的流体绝缘高压线圈。 绝缘管延伸到罐中，其中管的内部可从罐的外侧接近。 电接触元件沿其纵向轴线延伸穿过管壁，其中至少一些接触元件与抽头电连接。 在绝缘管的内部设置可拆卸的柱状电动作用装置，其通过接触元件与至少两个抽头电连接。

    TRANSFORMER USED FOR STORING AND FILTERING
    18.
    发明申请
    TRANSFORMER USED FOR STORING AND FILTERING 审中-公开
    变压器用于存储和过滤

    公开(公告)号：US20150162127A1

    公开(公告)日：2015-06-11

    申请号：US14414049

    申请日：2013-06-29

    Applicant: Hella KGaA Hueck & Co.

    Inventor： Wolfgang Daub

    IPC: H01F30/12 ,  H01F38/42

    CPC classification number: H01F30/12 ,  H01F3/12 ,  H01F38/42 ,  H01F2038/426

    Abstract: A multi-phase stray field transformer used for storing energy and filtering currents with a number of 2*n+1 phases, wherein “n” represents a natural number, comprising a core (11, 12, 13, 14) with 2*n+1 of first yokes (11, 11a) with one winding (2) arranged on every first yoke and with at least one additional (second) yoke (12) that is connected to the rest of the core (13, 14) across an air gap (3) and/or exhibits such an air gap (3) with the core (11, 12, 13, 14) of the transformer being provided with 2*n second yokes (12) that are arranged with the first yokes (11) in an alternating fashion.

    Abstract translation: 一种多相杂散场变压器，用于存储具有多个2 * n + 1相的能量和滤波电流，其中“n”表示自然数，包括具有2 * n的核心（11,12,13,14） +1的第一轭（11,11a），其中一个绕组（2）布置在每个第一磁轭上，以及至少一个附加（第二）磁轭（12），其连接到所述磁芯（13,14）的其余部分 气隙（3）和/或表现出与变压器的铁心（11,12,13,14）一起的这种气隙（3）设置有与第一轭架（...）配置的2 * n个第二轭铁（12） 11）以交替的方式。

    DRUM-TYPE TRI-PHASE TRANSFORMER AND METHODS FOR PRODUCING SAME
    19.
    发明申请
    DRUM-TYPE TRI-PHASE TRANSFORMER AND METHODS FOR PRODUCING SAME 有权
    鼓式三相变压器及其制造方法

    公开(公告)号：US20150162123A1

    公开(公告)日：2015-06-11

    申请号：US14406327

    申请日：2012-11-13

    Applicant: PONTIFICIA UNIVERSIDAD CATOLICA DEL PERU

    Inventor： Anibal Eduardo Ismodes Cascon ,  Oscar Antonio Melgarejo Ponte

    IPC: H01F27/28 ,  H01F41/02 ,  H01F41/06 ,  H01F27/245

    CPC classification number: H01F27/28 ,  H01F27/245 ,  H01F30/12 ,  H01F41/0233 ,  H01F41/06 ,  Y10T29/49071

    Abstract: This new type of transformer comprises a ferromagnetic drum-type core characterized in that the drum core has a plurality of holes or windows parallel to the drum longitudinal shaft to place the windings being the windows arranged close to the periphery of the drum symmetrically distributed at 360° of the circumference, each winding being parallel to the longitudinal shaft of the drum and each one of the windings crossing said longitudinal shaft. The core comprises two main components: a central body and an air gap filling system. The central body is formed by a plurality of silicon steel sheets, stacked one over the other, each of them has slots or spaces on its periphery thereof to place the windings and with an air gap filling system. Said filling system can be: wedge-shaped sheets, set of sheets extending parallel to the shaft of the core or a metal sheet wound around the central body.

    Abstract translation: 这种新型变压器包括铁磁鼓式铁芯，其特征在于，所述鼓芯具有平行于所述鼓纵向轴的多个孔或窗，以将所述绕组设置成靠近所述滚筒的周边，所述窗对称地分布在360° °，每个绕组平行于滚筒的纵向轴，并且每个绕组与所述纵向轴交叉。 核心包括两个主要部件：中心体和气隙填充系统。 中心体由多个硅钢片形成，多个硅钢板彼此层叠，每个硅钢片的周边上都有槽或间隔，以便放置绕组和气隙填充系统。 所述填充系统可以是：楔形片，平行于芯的轴延伸的片组或缠绕在中心体上的金属片。

    Oil immersed stereo wound-core amorphous alloy transformer
    20.
    发明授权
    Oil immersed stereo wound-core amorphous alloy transformer 有权
    油浸式立体声缠绕芯非晶合金变压器

    公开(公告)号：US08963677B2

    公开(公告)日：2015-02-24

    申请号：US13820737

    申请日：2011-10-31

    Applicant: Kaixuan Xu ,  Xianqing Guo

    Inventor： Kaixuan Xu ,  Xianqing Guo

    IPC: H01F27/26 ,  H01F30/12 ,  H01F27/10 ,  H01F27/02 ,  H01F27/24 ,  H01F27/06 ,  H01F27/00 ,  H01F27/30 ,  H01F27/25

    CPC classification number: H01F27/06 ,  H01F27/008 ,  H01F27/25 ,  H01F27/26 ,  H01F27/306 ,  H01F30/12

    Abstract: An oil immersed stereo wound-core amorphous alloy transformer, comprising an iron core, a high-low voltage winding, leads and a tank. The core comprises three single frames made of amorphous alloy strips by winding and are identical in structure, and the single frames have a rectangular shape; the vertical sides of every two adjacent frames fit together fixedly to form a core pillar, and the horizontal sides of the single frame form iron yokes; the cross sections of the core pillars have an approximately circular or polygonal shape; the transformer further comprises a clamp, comprising a quasi-triangular upper and lower clamp, and posts, the lower clamp is provide with three food pads; the iron yokes in the lower portion of the iron core are located on the foot pads, and the high-low voltage winding is wound on the core pillars.

    Abstract translation: 一种油浸式立体声缠绕芯非晶合金变压器，包括铁芯，高低压绕组，引线和水箱。 芯包括由非晶合金带制成的三个单一框架，其结构相同，单个框架具有矩形形状; 每两个相邻的框架的垂直边固定在一起形成一个芯柱，单个框架的水平边形成铁轭; 芯柱的横截面具有近似圆形或多边形的形状; 所述变压器还包括夹具，包括准三角形上下夹具和柱，所述下夹具提供三个食物垫; 铁芯下部的铁轭位于脚垫上，高低压绕组缠绕在芯柱上。

Patent Agency Ranking