公开(公告)号：US20230123517A1

公开(公告)日：2023-04-20

申请号：US17905517

申请日：2021-02-04

Applicant: ABB Schweiz AG

Inventor： Gunnar Johansson ,  Lisa Almén

IPC: H01H33/18

Abstract: An electromechanical switching device for breaking an electric current, the switching device including a stationary main contact; a movable main contact; a stationary arcing contact; a movable arcing contact, the stationary arcing contact and the movable arcing contact being arranged in parallel with the stationary main contact and the movable main contact; an actuating arrangement configured to move the movable main contact and the movable arcing contact; and a magnetic member arranged to generate a magnetic holding force in response to an electric current flow through the movable arcing contact when the movable arcing contact is in the closed position, the magnetic holding force acting on the movable arcing contact in a direction against the stationary arcing contact.

公开(公告)号：US12224136B2

公开(公告)日：2025-02-11

申请号：US17905517

申请日：2021-02-04

Applicant: ABB Schweiz AG

Inventor： Gunnar Johansson ,  Lisa Almén

IPC: H01H33/18

Abstract: An electromechanical switching device for breaking an electric current, the switching device including a stationary main contact; a movable main contact; a stationary arcing contact; a movable arcing contact, the stationary arcing contact and the movable arcing contact being arranged in parallel with the stationary main contact and the movable main contact; an actuating arrangement configured to move the movable main contact and the movable arcing contact; and a magnetic member arranged to generate a magnetic holding force in response to an electric current flow through the movable arcing contact when the movable arcing contact is in the closed position, the magnetic holding force acting on the movable arcing contact in a direction against the stationary arcing contact.