公开(公告)号：WO2014154320A1

公开(公告)日：2014-10-02

申请号：PCT/EP2014/000567

申请日：2014-03-05

Applicant: ABB TECHNOLOGY AG

Inventor： BANASZCZYK, Jedrzej ,  RYBAK, Andrzej ,  BACHORZ, Lukasz ,  IBARRA, Claudio ,  KERN, Joel ,  JOHNSON, Charles ,  HARTMANN, Thomas ,  STEINMETZ, Thorsten ,  CARLEN, Martin

IPC: H01F27/32 ,  H01F27/36

CPC classification number: H01F27/324 ,  H01F27/325 ,  H01F27/362

Abstract: The present invention relates to an active part of a dry-type distribution transformer having an insulation system with electrical field control. An active part of the dry transformer comprising a core (1) with yokes (2) and limbs (3) having an a longitudinal axis (A) around which LV coils (4) and winding bobbin (5) is placed concentrically. The bobbin (5) has a shape of a longitudinal cylinder (5a) which is ended with annular discs (5b). The bobbin (5) is made of material having a dielectric permittivity which is two to five times higher more the dielectric permittivity of the insulating body (8) surrounding the limb (3) around the axis (A), in which the LV coils (4) and HV coils (6) are embedded. The external facial surfaces of the insulating body (8) is provided with a metallic layer (10) having such electric conductivity that the part of the insulating body (8) between an internal surface of the metallic layer (10) and an external surface of the annular disc (5b) has a thickness (d3) which is sufficient for insulation. A side surface of the cylinder (5a) is covered with a resistive layer (7) being a control shield of an electric field around the limb (3) of the core (1) and the HV coils (6) and the LV coils (4).

Abstract translation: 本发明涉及具有电场控制的绝缘系统的干式配电变压器的有源部分。 干式变压器的有源部分包括具有轭（2）的芯（1）和具有纵向轴线（A）的四边形（3），LV线圈（4）和绕线架（5）围绕该轴线同心地放置。 线轴（5）具有以环形盘（5b）结束的纵向气缸（5a）的形状。 线轴（5）由具有介电常数的材料制成，介电常数是围绕轴线（A）围绕肢体（3）的绝缘体（8）的介电常数的两倍到五倍，其中LV线圈 4）和HV线圈（6）。 绝缘体（8）的外表面设置有具有导电性的金属层（10），绝缘体（8）的一部分位于金属层（10）的内表面和外部表面之间 环形盘（5b）具有足够的绝缘厚度（d3）。 气缸（5a）的侧表面被电阻层（7）覆盖，电阻层（7）是围绕铁心（1）的肢体（3）和HV线圈（6）和LV线圈（ 4）。

公开(公告)号：WO2011116850A1

公开(公告)日：2011-09-29

申请号：PCT/EP2011/000436

申请日：2011-02-01

Applicant: ABB TECHNOLOGY AG ,  WEBER, Benjamin ,  TEPPER, Jens ,  CARLEN, Martin ,  HARTMANN, Thomas

Inventor： WEBER, Benjamin ,  TEPPER, Jens ,  CARLEN, Martin ,  HARTMANN, Thomas

IPC: H01F30/12 ,  H01F41/12 ,  H01F27/32

CPC classification number: H01F30/12 ,  H01F27/25 ,  H01F27/322 ,  H01F27/327 ,  H01F41/127 ,  H01F2027/328

Abstract: The invention relates to a three-phase high performance dry- type transformer (10) with epoxy insulated coils (12, 14, 16) having a triangular core (20) formed by three core legs linked together by an upper yoke (18) and a lower yoke, each coil wound around its own core leg and provided with reinforcing fibres and cast resin. Furthermore it relates to a method for manufacturing same where a lower yoke is connected with core legs, each core leg is provided with a winding of copper wire, each winding is laminated with reinforcing fibres, rovings, or prepregs made thereof, in each winding a tube like body is fitted in order to form a channel for discharging heat losses during operation, and each coil is provided with cast resin. Each coil is then shifted on the respective core leg, the upper yoke is connected to the core legs, and the electrical installation of the conductors of each coil is finalized.

Abstract translation: 本发明涉及一种具有环氧绝缘线圈（12,14,16）的三相高性能干式变压器（10），其具有通过上磁轭（18）连接在一起的三芯铁心构成的三角形铁心（20）和 一个下轭，每个线圈缠绕在自己的芯腿上，并配有增强纤维和浇铸树脂。 此外，本发明涉及一种制造方法，其中下轭与芯腿连接，每个芯腿设置有铜线绕组，每个绕组在每个绕组a中与其制成的增强纤维，粗纱或预浸料层压 管状体装配以形成用于在操作期间排出热损失的通道，并且每个线圈都设置有浇注树脂。 然后，每个线圈在相应的芯腿上移动，上轭连接到芯腿，并且每个线圈的导体的电气安装被完成。

公开(公告)号：WO2011126991A1

公开(公告)日：2011-10-13

申请号：PCT/US2011/031114

申请日：2011-04-04

Applicant: ABB TECHNOLOGY AG ,  SINGH, Bandeep ,  HARTMANN, Thomas ,  PAULEY, William, E., Jr.

Inventor： SINGH, Bandeep ,  HARTMANN, Thomas ,  PAULEY, William, E., Jr.

IPC: H01F27/32 ,  H01F30/12 ,  H01F27/29

CPC classification number: H01F27/327 ,  H01F27/23 ,  H01F30/12 ,  H01F2027/328

Abstract: A three-phase dry distribution transformer adapted for mounting outdoors on a pad or to a utility pole. The distribution transformer includes one or more winding assemblies mounted to a ferromagnetic core. Each winding assembly includes a low voltage winding and a high voltage winding. In each winding assembly, an encasement comprised of an insulating resin encapsulates the low voltage and high voltage windings. The encasement includes a body and a pair of high voltage bushings and a pair of low voltage bushing.

Abstract translation: 一种三相干式配电变压器，适用于室外安装在电盘或电线杆上。 配电变压器包括安装到铁磁芯的一个或多个绕组组件。 每个绕组组件包括一个低压绕组和一个高压绕组。 在每个绕组组件中，由绝缘树脂构成的封装封装了低压和高压绕组。 外壳包括一个主体和一对高压套管和一对低压套管。

公开(公告)号：EP2556521A1

公开(公告)日：2013-02-13

申请号：EP11713651.5

申请日：2011-04-04

Applicant: ABB Technology AG

Inventor： SINGH, Bandeep ,  HARTMANN, Thomas ,  PAULEY, William, E., Jr.

IPC: H01F27/32 ,  H01F30/12 ,  H01F27/29

CPC classification number: H01F27/327 ,  H01F27/23 ,  H01F30/12 ,  H01F2027/328

Abstract: A three-phase dry distribution transformer adapted for mounting outdoors on a pad or to a utility pole. The distribution transformer includes one or more winding assemblies mounted to a ferromagnetic core. Each winding assembly includes a low voltage winding and a high voltage winding. In each winding assembly, an encasement comprised of an insulating resin encapsulates the low voltage and high voltage windings. The encasement includes a body and a pair of high voltage bushings and a pair of low voltage bushing.