公开(公告)号：US11204382B2

公开(公告)日：2021-12-21

申请号：US16764695

申请日：2018-06-14

Applicant: ABB Power Grids Switzerland AG

Inventor： Obbalareddi Demudu Naidu ,  Rahul Nandkumar Gore ,  Nandkishor Kubal

IPC: G01R31/08 ,  H02J3/18

Abstract: A method can be used to determine a fault location in a power transmission line that connects a first terminal with a second terminal. Parameters associated with travelling waves are detected from measurements carried out at the first and second terminals. The parameters include arrival times of first and second peaks of the travelling waves at the first and second terminals respectively, and rise times of the first peaks of corresponding travelling waves. A first half, a second half, or a mid-point of the power transmission line is identified as having a fault based on the parameters. The fault location can be estimated based on the arrival times of the first and second peaks of the travelling waves detected from measurements carried out at the first and second terminals, a velocity of propagation of the travelling wave in the power transmission line, and/or a length of the power transmission line.

公开(公告)号：US20210391117A1

公开(公告)日：2021-12-16

申请号：US17279611

申请日：2019-09-24

Applicant: ABB Power Grids Switzerland AG

Inventor： Uwe Drofenik ,  Thomas Gradinger

IPC: H01F27/32 ,  H01F27/24 ,  H01F41/066 ,  H01F41/12 ,  H01F41/00

Abstract: A transformer is described. The transformer includes a transformer core having a core leg having a longitudinal axis, a low voltage winding arranged around the core leg, the low voltage winding extending along a first length in the direction of the longitudinal axis, a high voltage winding arranged around the low voltage winding, the high voltage winding extending along a second length in the direction of the longitudinal axis, wherein the second length is shorter than the first length, and a casting embedding the low voltage winding and the high voltage winding. The casting has a recess. The recess is provided at a radial location of the high voltage winding and the recess extends in the direction of the longitudinal axis.

公开(公告)号：US20210383956A1

公开(公告)日：2021-12-09

申请号：US17286021

申请日：2019-10-02

Applicant: ABB POWER GRIDS SWITZERLAND AG

Inventor： Bernardo Galletti ,  Andreas Blaszczyk ,  Wei Wu

IPC: H01F27/14 ,  H01F27/02

Abstract: Radiator for a transformer comprising a plurality of radiator panels with at least a first and a second radiator panel extending in a substantially vertical direction, wherein the first and the second radiator panel form an air duct providing a gap there-between having a width of smaller than 90 mm, and wherein a first radio panel bottom edge is located at a lower vertical height position than a second radiator panel bottom edge, wherein the first radiator panel is located at a side of the radiator panel such that the first radiator panel and a transformer side form a transformer air duct wherein the second radio panel bottom edge is located at a larger height than the first radio panel bottom edge and wherein the radiator panels have an aspect ratio greater than 8 of a depth of the radiator panel over a width of the air duct.

公开(公告)号：US11189688B2

公开(公告)日：2021-11-30

申请号：US17285415

申请日：2019-09-13

Applicant: ABB Power Grids Switzerland AG

Inventor： Luca De-Michielis ,  Munaf Rahimo ,  Chiara Corvasce

IPC: H01L29/06 ,  H01L29/78 ,  H01L21/265 ,  H01L29/66 ,  H01L29/739

Abstract: An insulated gate power semiconductor device (1a), comprises in an order from a first main side (20) towards a second main side (27) opposite to the first main side (20) a first conductivity type source layer (3), a second conductivity type base layer (4), a first conductivity type enhancement layer (6) and a first conductivity type drift layer (5). The insulated gate power semiconductor device (1a) further comprises two neighbouring trench gate electrodes (7) to form a vertical MOS cell sandwiched between the two neighbouring trench gate electrodes (7). At least a portion of a second conductivity type protection layer (8a) is arranged in an area between the two neighbouring trench gate electrodes (7), wherein the protection layer (8a) is separated from the gate insulating layer (72) by a first conductivity type channel layer (60a; 60b) extending along the gate insulating layer (72).

公开(公告)号：US20210320170A1

公开(公告)日：2021-10-14

申请号：US17285415

申请日：2019-09-13

Applicant: ABB Power Grids Switzerland AG

Inventor： Luca De-Michielis ,  Munaf Rahimo ,  Chiara Corvasce

IPC: H01L29/06 ,  H01L29/78 ,  H01L29/739 ,  H01L29/66 ,  H01L21/265

Abstract: An insulated gate power semiconductor device (1a), comprises in an order from a first main side (20) towards a second main side (27) opposite to the first main side (20) a first conductivity type source layer (3), a second conductivity type base layer (4), a first conductivity type enhancement layer (6) and a first conductivity type drift layer (5). The insulated gate power semiconductor device (1a) further comprises two neighbouring trench gate electrodes (7) to form a vertical MOS cell sandwiched between the two neighbouring trench gate electrodes (7). At least a portion of a second conductivity type protection layer (8a) is arranged in an area between the two neighbouring trench gate electrodes (7), wherein the protection layer (8a) is separated from the gate insulating layer (72) by a first conductivity type channel layer (60a; 60b) extending along the gate insulating layer (72).

公开(公告)号：US11134066B2

公开(公告)日：2021-09-28

申请号：US16564353

申请日：2019-09-09

Applicant: ABB Power Grids Switzerland AG

Inventor： Wolfgang Spahn ,  Jon Duri Sarott

IPC: H04L29/06 ,  H04L12/815 ,  H04L12/805 ,  H04L12/935 ,  H04L12/26 ,  H04L12/707 ,  H04L12/721 ,  H04L12/723

Abstract: To provide secure communication over end-to-end data paths or segments of end-to-end paths in a timed deterministic packet network including a plurality of packet engines that perform packet handling, cipher engines are provided separately from the packet engines. The cipher engines are operative to perform at least one cyber security function. A cipher engine and key manager provides central control for the plurality of cipher engines. A centralized packet flow path manager, PFPM, may set up endpoint nodes and intermediate transit nodes of the end-to-end data paths of the packet network.

公开(公告)号：USD930602S1

公开(公告)日：2021-09-14

申请号：US29687627

申请日：2019-04-15

Applicant: ABB Power Grids Switzerland AG

Designer： Fredrik Alfredsson ,  Mikael Edoff

公开(公告)号：US11114262B2

公开(公告)日：2021-09-07

申请号：US16764810

申请日：2018-07-13

Applicant: ABB Power Grids Switzerland AG

Inventor： Manish Sinjonia ,  Krunal Kansara ,  Ajit Kadam ,  Shashwat Chauhan

IPC: H01H1/44 ,  H01H31/20 ,  H01H31/28 ,  H01H33/12

Abstract: A switchgear having bus transfer current switching capability by a turn and twist mechanism that includes a contact system for electrical current conduction and bus transfer switching is provided. The contact system has fixed and movable contact assemblies. Each contact assembly includes main contacts and arcing contacts. The arcing contacts are for bus transfer switching. The movable contact assembly includes a current path pipe and an end piece. The current path pipe is a cylindrical pipe, and the end piece is a rectangular block. The movable contact assembly includes a movable main contact provided on the rectangular block, and a movable arcing contact provided at the end of the cylindrical pipe on a portion about the periphery. During engagement, the cylindrical pipe turns about a first axis to bring the contact assemblies proximal to each other, and twists about a second axis for engagement of the main contacts.

公开(公告)号：US20210265122A1

公开(公告)日：2021-08-26

申请号：US17253349

申请日：2019-08-28

Applicant: ABB Power Grids Switzerland AG

Inventor： Jakub Korbel ,  Olaf Hunger ,  Reto Karrer ,  Henrik Dahlgren ,  Alexey Sokolov ,  Giang PhamVan

IPC: H01H33/74 ,  H01H33/53

Abstract: A gas-insulated high or medium voltage circuit breaker comprising: a first arcing contact and a second arcing contact, wherein at least one of the two arcing contact is axially movable along a switching axis, wherein during a breaking operation, an arc between the first arcing contact and the second arcing contact is formed in a arcing region; a buffer housing defining a pressurizing volume; a nozzle arranged at a nozzle side of the pressurizing volume, the nozzle defining a channel connected to the pressurizing volume and directed to the arcing region, for blowing an arc extinguishing gas towards the arcing region during the breaking operation, the nozzle comprising a nozzle front face facing towards the interior of the pressurizing volume.

公开(公告)号：US11087939B2

公开(公告)日：2021-08-10

申请号：US16773297

申请日：2020-01-27

Applicant: ABB Power Grids Switzerland AG

Inventor： Denis Tehlar ,  Martin Seeger ,  Nitesh Ranjan ,  Patrick Stoller ,  Raffael Buehler ,  Jan Carstensen

IPC: H01H33/52 ,  H01H33/12 ,  H01H33/18 ,  H01H33/70 ,  H01H33/90 ,  H01H33/91 ,  C07C49/167 ,  H01H33/86

Abstract: The present invention relates to a device for interrupting non-short circuit currents only, and in particular relates to a disconnector, more particularly high voltage disconnector, or to an earthing switch, more particularly make-proof earthing switch, and further relates to a low voltage circuit breaker. The device comprises at least two contacts movable in relation to each other between a closed state and an open state and defining an arcing region, in which an arc is generated during a current interrupting operation and in which an arc-quenching medium comprising an organofluorine compound is present. According to the application, a counter-arcing component is allocated to the arcing region, the counter-arcing component being designed for counteracting the generation of an arc and/or being designed for supporting the extinction of an arc.