公开(公告)号：US20210310973A1

公开(公告)日：2021-10-07

申请号：US17288055

申请日：2019-10-17

Applicant: ABB SCHWEIZ AG

Inventor： Manoj Pradhan

IPC: G01N27/22

Abstract: An electrical device including: voltage carrying components, a solid insulation system configured to electrically insulate the voltage carrying components, and a moisture sensor configured to detect moisture in the solid insulation system, wherein the moisture sensor includes: a capacitor having: a first electrode, a second electrode, and a dielectric material arranged between the first electrode and the second electrode, wherein the solid insulation system forms the dielectric material, the capacitance of the capacitor providing an indication of a moisture level in the dielectric material.

公开(公告)号：US20200185140A1

公开(公告)日：2020-06-11

申请号：US16466079

申请日：2017-11-17

Applicant: ABB Schweiz AG

Inventor： Manoj Pradhan

IPC: H01F27/26 ,  H01F41/02

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：US20170148563A1

公开(公告)日：2017-05-25

申请号：US15402775

申请日：2017-01-10

Applicant: ABB Schweiz AG

Inventor： Malena Bergsblom ,  Manoj Pradhan ,  Roberto Zannol ,  Santanu Singha ,  Stephan Schnez ,  Thorsten Steinmetz ,  Venkatesulu Bandapalle

IPC: H01F27/32 ,  H01F27/42 ,  H01F27/18 ,  H01F27/40 ,  H01F27/20

Abstract: The present invention relates to an electrical device comprising a gas-insulated transformer or reactor. The electrical device comprises a housing enclosing an interior space, at least a portion of which defining an insulation space containing a dielectric insulation fluid comprising an organofluorine compound, and an electrical component being arranged in the insulation space and being surrounded by the insulation fluid. The electrical component comprises at least one winding. The electrical device further comprises an electrical connector for bringing the apparatus from non-operational state to operational state by connecting at least one winding to a power grid. The device further comprises an auxiliary power source which is connectable to at least one winding when the apparatus is in the non-operational state.

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：US09583237B2

公开(公告)日：2017-02-28

申请号：US15025257

申请日：2014-09-19

Applicant: ABB Schweiz AG

Inventor： Manoj Pradhan ,  Thorsten Steinmetz ,  Venkatesulu Bandapalle ,  Harald Martini ,  Adam Michalik ,  Artur Siwek ,  Bartlomiej Adamczyk ,  Jonas Ekeberg ,  Renata Porebska ,  Roberto Zannol ,  Santanu Singha

IPC: H01B13/00 ,  B05D7/20 ,  H01B13/14 ,  B29C47/00 ,  B05D1/26 ,  B05D1/42 ,  B05D3/02

CPC classification number: H01B13/145 ,  B05D1/265 ,  B05D1/42 ,  B05D3/0218 ,  B05D7/20 ,  B29C47/0016 ,  B29C47/003 ,  H01B13/0016 ,  H01B13/14 ,  Y10T29/49117 ,  Y10T29/49204 ,  Y10T29/4998

Abstract: A method of manufacturing a polymer-insulated conductor. The method includes the steps of a) providing a conductor having a first cross-sectional shape, b) passing the conductor through a conductor-shaping die to shape the conductor such that the conductor obtains a second cross-sectional shape, wherein frictional heat is developed in the conductor, thereby setting the conductor in a heated state, c) applying molten polymer to the conductor when the conductor is in the heated state to obtain a polymer-coated conductor, and d) shaping the polymer-coated conductor by means of a polymer-shaping die to thereby obtain the polymer-insulated conductor.

Abstract translation: 一种制造聚合物绝缘导体的方法。 该方法包括以下步骤：a）提供具有第一横截面形状的导体，b）使导体穿过导体成形模以使导体成形，使得导体获得第二横截面形状，其中摩擦热为 在导体中开发，从而将导体设置在加热状态，c）当导体处于加热状态时将熔融聚合物施加到导体上，以获得聚合物涂覆的导体，以及d）通过以下方式使聚合物涂覆的导体成形： 聚合物成形模，从而获得聚合物绝缘导体。

公开(公告)号：US20200381175A1

公开(公告)日：2020-12-03

申请号：US16499036

申请日：2018-03-21

Applicant: ABB Schweiz AG

Inventor： Manoj Pradhan ,  Tor Laneryd

IPC: H01F27/40 ,  H01F27/28 ,  G01K11/32

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：US10210983B2

公开(公告)日：2019-02-19

申请号：US15169145

申请日：2016-05-31

Applicant: ABB Schweiz AG

Inventor： Manoj Pradhan ,  Gunnar Russberg

IPC: H01F27/02 ,  H01F27/24 ,  H01F3/10 ,  H01F27/34 ,  H01F3/14

Abstract: An electromagnetic induction device including a magnetic core having a limb which has a first end and a second end, windings arranged around the limb, and a housing including magnetic material, which housing defines a space in which the magnetic core and the windings are arranged, wherein the housing defines a return path for the primary magnetic flux, enabling primary magnetic flux from the first end of the limb to flow via the housing to the second end of the limb.