公开(公告)号：EP3618088A1

公开(公告)日：2020-03-04

申请号：EP18191753.5

申请日：2018-08-30

Applicant: ABB Schweiz AG

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

IPC: H01H33/70

Abstract: A gas-insulated high or medium voltage circuit breaker (100) comprising: a first arcing contact (101) and a second arcing contact (102), wherein at least one of the two arcing contact is axially movable along a switching axis (110), wherein during a breaking operation, an arc (120) between the first arcing contact (101) and the second arcing contact (102) is formed in a arcing region (125); a buffer housing (130) defining a pressurizing volume (140); a nozzle (150) arranged at a nozzle side (152) of the pressurizing volume (140), the nozzle (150) defining a channel (153) connected to the pressurizing volume (140) and directed to the arcing region (125), for blowing an arc extinguishing gas towards the arcing region (125) during the breaking operation, the nozzle (150) comprising a nozzle front face (160) facing towards the interior (180) of the pressurizing volume (140).

公开(公告)号：EP3091547B1

公开(公告)日：2018-07-04

申请号：EP15166784.7

申请日：2015-05-07

Applicant: ABB Schweiz AG

Inventor： Pisu, Franceso ,  Lundqvist, Fredrik ,  Korbel, Jakub ,  Costyson, Johan ,  Kurnal, Kansara ,  Runnberg, Matthias ,  Kotilainen, Sami ,  Rijo-Jude, Raphael

IPC: H01H1/38 ,  H01H33/02

CPC classification number: H01H1/06 ,  H01H1/385 ,  H01H1/50 ,  H01H33/02

Abstract: The invention relates to a circuit breaker comprising a first and a second contact assembly (1, 2), wherein one of the contact assemblies (1) comprises contact fingers arranged in a finger cage configuration and the other contact assembly (2) comprises a tube or rod contact. The contact fingers (1) comprise an impact point (3) where the tube or rod (2) impacts the contact fingers (1) for the first time during electrical connection establishment, and a contact zone which contacts the tube or rod (2) when the electrical connection is established. The contact zone comprises two contact points (4) separated from one another and arranged on a line which is perpendicular to the longitudinal axis (z).

公开(公告)号：EP3567621A1

公开(公告)日：2019-11-13

申请号：EP19167882.0

申请日：2019-04-08

Applicant: ABB Schweiz AG

Inventor： Garcia-Ferre, Francisco ,  Schmoelzer, Thomas ,  Jacimovic, Jacim ,  Herrmann, Lorenz ,  Korbel, Jakub ,  Erford, Tobias ,  Saxl, David

IPC: H01H1/36 ,  H01H3/22 ,  H01H9/40 ,  H01H33/14 ,  H01H33/28 ,  H01H33/38

Abstract: An electrical switch assembly (10) comprises a contact element (14, 18) to be moved towards a further contact element (14, 18) for generating an electrical connection; and a drive (16) for moving the contact element (14, 18); wherein the drive (16) comprises a plunger (26) with a connection member (30) interconnected with the contact element (14); wherein the plunger (26) comprises a mechanical structure (34) with a top side (36) to which the connection member (30) is connected, and a bottom side (38) opposite to the top side (36); wherein the drive (16) comprises a Thomson coil (52) for moving the plunger (26) via an electrically conducting top face (48), which is provided on the top side (36) and an electrically conducting bottom face (50), which is provided on the bottom side (38). The mechanical structure (34) comprises at least one channel between the top side (36) and the bottom side (38), the at least one channel extending transverse to a movement direction (D) of the plunger (26). Furthermore, the mechanical structure (34) fills less than 50% of a volume between the top side (36) and the bottom side (38).

公开(公告)号：EP2717283B1

公开(公告)日：2019-07-24

申请号：EP12187032.3

申请日：2012-10-02

Applicant: ABB Schweiz AG

Inventor： kostovic, Jadran ,  Korbel, Jakub ,  Kriegel, Martin ,  Mahdizadeh, Navid ,  Gariboldi, Nicola ,  Kotilainen, Sami ,  Ye, Xiangyang

IPC: H01H1/06 ,  H01H1/38