公开(公告)号：US20230282411A1

公开(公告)日：2023-09-07

申请号：US18181673

申请日：2023-03-10

Applicant: ABB Schweiz AG

Inventor： Jedrzej Banaszczyk ,  Adam Anszczak ,  Wojciech Piasecki ,  Wojciech Wysocki ,  Bartlomiej Adamczyk

IPC: H01F27/32 ,  H01F41/12 ,  H01F27/28

CPC classification number: H01F27/327 ,  H01F41/122 ,  H01F27/323 ,  H01F27/288 ,  H01F2027/329

Abstract: A primary coil suitable for use in a transformer includes a primary winding bobbin onto which a layer of a primary winding and at least one layer, which includes a fixed number of 1 to 3 layers, of an interlayer insulation material are wound alternately, wherein the interlayer insulation material and the primary winding are impregnated with an epoxy, and wherein the interlayer insulation material is a nonwoven material or a crepe paper.

公开(公告)号：US10097002B2

公开(公告)日：2018-10-09

申请号：US15735714

申请日：2015-06-30

Applicant: ABB SCHWEIZ AG

Inventor： Göran Brorsson ,  Hongbo Jiang ,  Marcin Szewczyk ,  Mats Hyttinen ,  Michal Lazarczyk ,  Pawel Dawidowski ,  Radoslaw Jez ,  Wojciech Piasecki

IPC: H02M5/42 ,  H02J3/36 ,  H02M5/44

Abstract: Embodiments are generally based on employing a power transmission line in a HVDC link to provide auxiliary power to one of the ends of the HVDC link for facilitating a black start thereof when the HVDC link is de-energized, i.e. when at least one of the HVDC converter stations is de-energized and there is no transmission of power between inverter and rectifier HVDC converter stations on each side of the HVDC link. A relatively small amount of power can be conveyed towards one of the HVDC converter stations via the power transmission line so as to provide power to any auxiliary system(s) of the converter station, for example prior to a black start of the converter station being carried out.

公开(公告)号：US20230019486A1

公开(公告)日：2023-01-19

申请号：US17866385

申请日：2022-07-15

Applicant: ABB Schweiz AG

Inventor： Martin Zlatanski ,  Yannick Maret ,  Wojciech Piasecki ,  Matija Varga

IPC: G01R31/327

Abstract: A circuit breaker is connected between an input supply line and an output supply line of a low-voltage electrical system and comprises a test signal transceiver and evaluator. The test signal transceiver comprises a first transceiver section being capacitively or inductively coupled, at a first coupling point, with the input supply line, and a second transceiver section being inductively coupled, at a second coupling point, with the input or output supply line. One of the first and second transceiver section is a test signal transmitter configured to generate and inject an AC test signal into the input or output supply line, and the other one of the first and second transceiver section is a test signal receiver configured to receive the test signal from the input or output supply line. A test signal evaluator is configured to determine the state of the circuit breaker from the received test signal.

公开(公告)号：US20240112849A1

公开(公告)日：2024-04-04

申请号：US18475559

申请日：2023-09-27

Applicant: ABB Schweiz AG

Inventor： Jedrzej Banaszczyk ,  Wojciech Piasecki ,  Michal Rzepecki ,  Filip Grecki ,  Uwe Drofenik

IPC: H01F27/28 ,  H01F27/32

CPC classification number: H01F27/2823 ,  H01F27/288 ,  H01F27/325

Abstract: A transformer coil comprises low and high voltage windings wound on a supporting construction and immersed in a main insulation material. The transformer coil has also a first barrier arranged proximate the low voltage winding and a second barrier arranged proximate the high voltage winding. Each of the first and second barriers is gas-tight and semiconductive so that gas bubbles potentially released during immersion in the main insulation material are unable to migrate to a high electric field region during the casting process or during apparatus operation.