公开(公告)号：WO2020043782A1

公开(公告)日：2020-03-05

申请号：PCT/EP2019/072976

申请日：2019-08-28

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：WO2019180239A1

公开(公告)日：2019-09-26

申请号：PCT/EP2019/057307

申请日：2019-03-22

Applicant: ABB SCHWEIZ AG

Inventor： KORBEL, Jakub ,  SYKES, Thomas ,  ELSER, Pierre ,  BLUMENROTH, Falk ,  STRAUMANN, Ulrich

IPC: H02G5/06

Abstract: A supporting insulator (100) has an insulator body (10) and at least one conductor fitting (20) for applying a high voltage thereto. The conductor fitting (20) passes through the insulator in an axial direction (Z) whereby a contact area (C) between the insulator body (10) and the conductor fitting (20) is formed. The insulator body (10) comprises a notch (11A, 11B) abutting on the contact area (C); and the conductor fitting (20) comprises an adjacent notch (21A, 21B) abutting on the contact area (C). The notches (11A, 21A; 11B, 21B) form a pair of stress relief means for alleviating even those stresses stemming from a temperature difference.

公开(公告)号：EP2936531B1

公开(公告)日：2017-11-08

申请号：EP13814123.9

申请日：2013-12-19

Applicant: ABB Schweiz AG

Inventor： HEIERMEIER, Helmut ,  KOSTOVIC, Jadran ,  KORBEL, Jakub ,  KARRER, Reto ,  KOTILAINEN, Sami ,  SUTHERLAND, Timothy ,  SUHRIE, Brant

IPC: H01H33/90 ,  H01H33/91

CPC classification number: H01H3/46 ,  H01H3/00 ,  H01H33/64 ,  H01H33/904 ,  H01H33/91