公开(公告)号：US20230197371A1

公开(公告)日：2023-06-22

申请号：US18065047

申请日：2022-12-13

Applicant: ABB Schweiz AG

Inventor： James Mannekutla ,  Elisabeth Lindell ,  Ola Jeppsson

IPC: H01H9/34 ,  H01H9/26

CPC classification number: H01H9/346 ,  H01H9/26 ,  H01H2009/267

Abstract: An arc quenching device for a three-phase electrical switchgear. The device includes a first busbar, a second busbar and a third busbar, each of a respective phase of the three-phase switchgear. The device also includes a first piston and a second piston, each of an electrically conductive material. The device also includes at least one pyrotechnical actuator arranged with the first and second pistons to axially move each of the first and second pistons if the at least one pyrotechnical actuator is fired. The first and second pistons are arranged in relation to the first, second and third busbars such that said axial movement brings the first piston into contact with both the first busbar and the second busbar, and the second piston into contact with both the first busbar and the third busbar.

公开(公告)号：US11387633B2

公开(公告)日：2022-07-12

申请号：US17310202

申请日：2020-01-21

Applicant: ABB Schweiz AG

Inventor： James Mannekutla ,  Ola Jeppsson ,  Stefan Valdemarsson

IPC: H02B13/00 ,  H01H9/02 ,  H01H1/06

Abstract: An electrical short-circuiting closing switch including an electrically insulating housing; a first electrode having a tapered first electrode opening; a second electrode having a tapered second electrode opening; a movable contact having a tapered profile, the movable contact being movable relative to the housing along a closing axis from an open position, in which the movable contact is electrically disconnected from the second electrode, to a closed position, in which the movable contact electrically connects the first electrode and the second electrode by engaging the tapered profile with the first electrode opening and the second electrode opening; and an actuator arranged to force the movable contact from the open position to the closed position; wherein at least one of the first electrode and the second electrode is flexibly attached to the housing. A switchgear including a closing switch is also provided.

公开(公告)号：US20230197381A1

公开(公告)日：2023-06-22

申请号：US18064567

申请日：2022-12-12

Applicant: ABB Schweiz AG

Inventor： James Mannekutla ,  Elisabeth Lindell ,  Ola Jeppsson

IPC: H01H39/00

CPC classification number: H01H39/004

Abstract: An arc quenching device for a three-phase electrical switchgear. The device includes a first busbar, a second busbar and a third busbar, each of a respective phase of the three-phase switchgear. The device also includes at least one piston of an electrically conductive material and having a tapered shape, tapering towards its front end. The device also includes only one pyrotechnical actuator arranged to, when the pyrotechnical actuator is fired, axially move each of the at least one piston until all of the first, second and third busbars are short-circuited to each other via the at least one piston.

公开(公告)号：US12170180B2

公开(公告)日：2024-12-17

申请号：US18064567

申请日：2022-12-12

Applicant: ABB Schweiz AG

Inventor： James Mannekutla ,  Elisabeth Lindell ,  Ola Jeppsson

IPC: H01H39/00

Abstract: An arc quenching device for a three-phase electrical switchgear. The device includes a first busbar, a second busbar and a third busbar, each of a respective phase of the three-phase switchgear. The device also includes at least one piston of an electrically conductive material and having a tapered shape, tapering towards its front end. The device also includes only one pyrotechnical actuator arranged to, when the pyrotechnical actuator is fired, axially move each of the at least one piston until all of the first, second and third busbars are short-circuited to each other via the at least one piston.