公开(公告)号：WO2020083748A1

公开(公告)日：2020-04-30

申请号：PCT/EP2019/078269

申请日：2019-10-17

Applicant: ABB SCHWEIZ AG

Inventor： PRADHAN, Manoj

IPC: G01N27/22

Abstract: An electrical device comprising: voltage carrying components, a solid insulation system (8) configured to electrically insulate the voltage carrying components, and a moisture sensor (2) configured to detect moisture in the solid insulation system (8), wherein the moisture sensor (2) comprises: a capacitor (9) having: a first electrode (3), a second electrode (5), and a dielectric material (7) arranged between the first electrode (3) and the second electrode (5), wherein the solid insulation system (8) forms the dielectric material (7), the capacitance of the capacitor (9) providing an indication of a moisture level in the dielectric material (7).

公开(公告)号：WO2017025225A1

公开(公告)日：2017-02-16

申请号：PCT/EP2016/063755

申请日：2016-06-15

Applicant: ABB SCHWEIZ AG

Inventor： PRADHAN, Manoj ,  ZANNOL, Roberto ,  KOISTINEN, Jaakko

IPC: H01F27/28 ,  H01F38/14 ,  H01F27/38 ,  H01F27/34 ,  H01F27/40

CPC classification number: H01F27/2847 ,  H01F27/34 ,  H01F2027/2857 ,  H01F2027/348

Abstract: The present disclosure relates to an electromagnetic induction device (1) comprising: a magnetic core (5) having a limb (7), a foil winding (9-3) wound around the limb (7), wherein the foil winding (9-3) has a first end portion (17) at a first axial end of the foil winding (9-3) and a second end portion (19) at a second axial end, opposite to the first axial end, of the foil winding (9-3), wherein each of the first end portion (17) and the second end portion (19) of the foil winding (9-3) is provided with cut-outs (21) along the circumference of the foil winding (9-3).

Abstract translation: 本发明涉及一种电磁感应装置（1），包括：具有四肢（7）的磁芯（5），缠绕在所述肢体（7）上的箔绕组（9-3）），其中所述箔绕组 3）在箔绕组（9-3）的第一轴向端处具有第一端部部分（17）和在箔绕组（9-3）的第一轴向端部的与第一轴向端部相对的第二轴向端部处的第二端部部分 9-3），其中箔绕组（9-3）的第一端部（17）和第二端部（19）中的每一个沿着箔绕组（9）的圆周设置有切口（21） -3）。

公开(公告)号：WO2018233833A1

公开(公告)日：2018-12-27

申请号：PCT/EP2017/065412

申请日：2017-06-22

Applicant: ABB SCHWEIZ AG

Inventor： LILJESTRAND, Lars ,  DIJKHUIZEN, Frans ,  SVENSSON, Jan ,  ZHANG, Xiaojing ,  HAJEK, Jan ,  GREVE, Gerhard ,  PRADHAN, Manoj

IPC: H05B7/144

CPC classification number: H05B7/144

Abstract: The present invention relates to a method for operating an electric-arc furnace, EAF. The method comprises converting, in a power electronic converter, a grid frequency to an operating frequency for an EAF, controlling, in the power electronic converter, the converted operating frequency between 100Hz and 1 kHz,and operating one of more electrical arc(s) of the EAF with the controlled converted operating frequency. Corresponding power electronic converter, EAF system and power transformer are also presented.

公开(公告)号：WO2018184850A1

公开(公告)日：2018-10-11

申请号：PCT/EP2018/057190

申请日：2018-03-21

Applicant: ABB SCHWEIZ AG

Inventor： PRADHAN, Manoj ,  LANERYD, Tor

IPC: H01F27/40

Abstract: The present invention relates to a static electric induction apparatus (1b) comprising a winding (2) including a plurality of winding units (3), at least one first spacer element (5) arranged between the winding units (3) and including a first groove (18) defined in the surface thereof, and a sensor system for monitoring the temperature in the apparatus, wherein the sensor system comprises an elongated and flexible temperature sensing element (16) disposed in the first groove.The first groove (18) has a curved part that receives the flexible temperature sensing element which is wound at least one revolution in the first groove (18). The first groove enters and exits the first spacer element in one and the same end of the first spacer element. The apparatus comprises an elongated second spacer element (14a) extending in an axial direction on the outside of the winding (2). The second spacer element (14a) comprises an elongated second groove (22) arranged in communication with the first groove, and the flexible temperature sensing element (16) is disposed in the first and second grooves.

公开(公告)号：WO2018171974A1

公开(公告)日：2018-09-27

申请号：PCT/EP2018/053161

申请日：2018-02-08

Applicant: ABB SCHWEIZ AG

Inventor： PRADHAN, Manoj ,  SHOORY, Abdolhamid ,  EKEBERG, Jonas ,  BANDAPALLE, Venkatesulu ,  MURILLO, Rafael

IPC: H01F27/28 ,  H01F27/32

Abstract: 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.

公开(公告)号：WO2016202686A1

公开(公告)日：2016-12-22

申请号：PCT/EP2016/063239

申请日：2016-06-10

Applicant: ABB SCHWEIZ AG

Inventor： PRADHAN, Manoj ,  ZANNOL, Roberto ,  WASS, Torbjörn ,  ERIKSSON, Göran

IPC: H01F27/28

CPC classification number: H01F27/2823 ,  H01F27/288

Abstract: The present disclosure relates to a method of manufacturing a cable for a winding of an electromagnetic induction device. The method comprises a) providing a layer of magnetic material onto a conductor.

Abstract translation: 本发明涉及制造用于电磁感应装置的绕组的电缆的方法。 该方法包括：a）在导体上提供一层磁性材料。

公开(公告)号：WO2018099737A1

公开(公告)日：2018-06-07

申请号：PCT/EP2017/079631

申请日：2017-11-17

Applicant: ABB SCHWEIZ AG

Inventor： PRADHAN, Manoj

IPC: H01F3/02 ,  H01F27/245 ,  H01F41/02 ,  H01F3/10

Abstract: There is provided a transformer core. The transformer core comprises a first yoke and a second yoke. The transformer core comprises at least two limbs extending between the first yoke and the second yoke. The first yoke is of grain-oriented steel. At least one of the second yoke and one of the at least two limbs is of amorphous steel. A method of manufacturing such a transformer core is also disclosed.

公开(公告)号：WO2018028874A1

公开(公告)日：2018-02-15

申请号：PCT/EP2017/065992

申请日：2017-06-28

Applicant: ABB SCHWEIZ AG

Inventor： ERIKSSON, Göran ,  PRADHAN, Manoj ,  WASS, Torbjörn

IPC: H01F27/28 ,  H01F27/36 ,  H01B7/30 ,  H01B9/02

Abstract: The present disclosure relates to a cable(1) for a high voltage winding of an electromagnetic induction device. The cable (1) comprises a conductor (5) having a width w, and a shield (3) arranged around at least a portion of the conductor (5), wherein in any cross-section of the conductor (5) the conductor has rounded corners (5a) with a radius r in the range w/5

Abstract translation: 本发明涉及一种用于电磁感应装置的高压绕组的电缆（1）。 电缆（1）包括具有宽度w的导体（5）和围绕导体（5）的至少一部分布置的屏蔽（3），其中在导体（5）的任何横截面中，导体具有 圆角（5a）的半径r在w / 5

公开(公告)号：EP3330980A1

公开(公告)日：2018-06-06

申请号：EP16201865.9

申请日：2016-12-02

Applicant: ABB Schweiz AG

Inventor： PRADHAN, Manoj

IPC: H01F3/02 ,  H01F27/245 ,  H01F41/02 ,  H01F3/10

CPC classification number: H01F3/02 ,  H01F27/245 ,  H01F41/0233 ,  H01F2003/106

Abstract: There is provided a transformer core. The transformer core comprises a first yoke and a second yoke. The transformer core comprises at least two limbs extending between the first yoke and the second yoke. The first yoke is of grain-oriented steel. At least one of the second yoke and one of the at least two limbs is of amorphous steel. A method of manufacturing such a transformer core is also disclosed.

公开(公告)号：EP3404677A1

公开(公告)日：2018-11-21

申请号：EP17171554.3

申请日：2017-05-17

Applicant: ABB Schweiz AG

Inventor： PRADHAN, Manoj ,  THOLENCE, Frédéric ,  FRIMPONG, George

IPC: H01F27/02 ,  F41H5/00 ,  F41H5/24 ,  H02B1/46

CPC classification number: H01F27/02 ,  F41H5/0442 ,  H02B1/46

Abstract: The invention is concerned with a protection arrangement for an inductive device (42, 44, 46, 48, 50, 52) as well as to an inductive apparatus comprising such a protection arrangement and inductive device. The protection arrangement comprises a first enclosure for housing the inductive device, where the first enclosure has at least one wall (12) comprising a first layer (24) of non-magnetic steel and a second layer (26) of bullet protecting material.