公开(公告)号：WO2022241656A1

公开(公告)日：2022-11-24

申请号：PCT/CN2021/094457

申请日：2021-05-18

Applicant: ABB SCHWEIZ AG ,  XU, Liming ,  SINGH, Shailendra ,  HUANG, Siyuan ,  CHEN, Xingjie ,  HUANG, Liqun ,  SUBBIAH THEVAR, Dukkaiappan

Inventor： XU, Liming ,  SINGH, Shailendra ,  HUANG, Siyuan ,  CHEN, Xingjie ,  HUANG, Liqun ,  SUBBIAH THEVAR, Dukkaiappan

IPC: H02B13/035 ,  H02B13/02

Abstract: Embodiments of present disclosure relate to a switchgear. The switchgear comprises: a cable compartment enclosed by walls and a cover; a cable connector arranged in the cable compartment and configured to electrically connect a cable to a cable bushing located in the cable compartment, wherein the cable connector comprises a first portion to which the cable is connected; and a metal plate arranged inside the cable compartment and comprising a main body arranged around the first portion; wherein a shortest distance between the main body and an outer surface of the first portion is in the range of 0 to 10 mm. This helps to reduce voltage drop across the plasma, resulting in a reduced energy of the arc. In this way, it is possible to minimize the undesirable results caused by the arc.

公开(公告)号：EP4086930A1

公开(公告)日：2022-11-09

申请号：EP21172726.8

申请日：2021-05-07

Applicant: ABB Schweiz AG

Inventor： VIERTEL, Julia ,  PAULSSON, Göran ,  SINGH, Shailendra

IPC: H01H3/62

Abstract: The present disclosure relates to a metal drive (1) for operating an electrical switch of a switchgear (10). The drive comprises at least a fist part (2a) and a second part (2b), the first part comprising a first contact surface (3a) arranged to move in relation to, and in contact with, a second contact surface (3b) of the second part. The first contact surface has a dry lubricant polymer coating (5) of a polymer material (6) applied directly on a metallic material (7).

公开(公告)号：EP3671993A1

公开(公告)日：2020-06-24

申请号：EP18214294.3

申请日：2018-12-20

Applicant: ABB Schweiz AG

Inventor： SINGH, Shailendra ,  SUBBIAH THEVAR, Dukkaiappan ,  SKRYTEN, Pal ,  KRISTOFFERSEN, Martin ,  LINDQVIST, Björn ,  PETTERSEN, Terje

IPC: H02B13/025 ,  H02G5/00

Abstract: An electrical arc absorber system (100) for a switchgear, controlling a current, is described. The arc absorber system includes an impedance reduction system (110) for reducing the impedance of an electrical arc appearing in the switchgear between the current phases or the current phases and the ground. The impedance reduction system reduces the impedance for the electrical arc compared to the impedance of the electrical arc in the medium present in the switchgear. Further, the impedance reduction system (110) comprising at least one arc catcher (111; 112; 113) for the current phases of the current. Also, a switchgear including an arc absorber system and a method for operating a switchgear is described.

公开(公告)号：EP4342044A1

公开(公告)日：2024-03-27

申请号：EP21940113.0

申请日：2021-05-18

Applicant: ABB SCHWEIZ AG

Inventor： XU, Liming ,  SINGH, Shailendra ,  HUANG, Siyuan ,  CHEN, Xingjie ,  HUANG, Liqun ,  SUBBIAH THEVAR, Dukkaiappan

IPC: H02B13/035 ,  H02B13/02