公开(公告)号：US20180247757A1

公开(公告)日：2018-08-30

申请号：US15958302

申请日：2018-04-20

Applicant: ABB Schweiz AG

Inventor： Carlos Roy ,  Rafael Murillo ,  Antonio Nogues ,  Lorena Cebrian ,  Luis Sanchez ,  Rahul Shah

IPC: H01F27/32 ,  H01F27/29 ,  H01F41/12 ,  H01F41/00

Abstract: A dry type cast-coil transformer having a voltage rating of 1 Kv and above, including: at least one coil with a plurality of conductor turns; a cast comprising a polymeric resin, encompassing the coil and having a cast surface; a ferromagnetic core on which the coil with the encompassing cast is mounted; an insulated cable termination connected to the coil, wherein the connection point between the insulated cable termination and the coil is within the cast, and wherein a flexible portion of the insulated cable termination further extends from the cast surface outwards and comprises a plurality of metal wires.

公开(公告)号：US20200013543A1

公开(公告)日：2020-01-09

申请号：US16495025

申请日：2018-02-08

Applicant: ABB Schweiz AG

Inventor： Manoj Pradhan ,  Abdolhamid Shoory ,  Jonas Ekeberg ,  Venkatesulu Bandapalle ,  Rafael Murillo

IPC: H01F27/32 ,  H01F27/24

Abstract: A high voltage winding for a single electrical phase of a high voltage electromagnetic induction device, wherein the high voltage winding comprises: a first winding part, and a second winding part, wherein the first winding part 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, and wherein the second winding part 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.

公开(公告)号：US10319510B2

公开(公告)日：2019-06-11

申请号：US14925774

申请日：2015-10-28

Applicant: ABB SCHWEIZ AG

Inventor： Rafael Murillo ,  Antonio Nogués Barrieras ,  Pilar Estella ,  Pedro Marqués Saldaña ,  Carlos Roy Martín ,  Lorena Cebrián Lles ,  Luis Sánchez

IPC: H01F27/28 ,  H01F27/24

Abstract: A transformer may comprise a winding wrapped around a magnetic core, the winding having at least one winding portion extending between the magnetic core and the exterior of the winding in radial direction. The winding may comprise at least a first conductor and at least a second conductor, arranged radially adjacent to each other in each winding portion with the interposition of an insulating layer, wherein the first conductor is arranged radially inwardly with respect to the second conductor for part of each winding portion length, and radially outwardly with respect to the second conductor for another part of each winding portion length.