公开(公告)号：US20250132105A1

公开(公告)日：2025-04-24

申请号：US18918634

申请日：2024-10-17

Applicant: ABB Schweiz AG

Inventor： Pierluigi Invernizzi ,  Simone Rambaldini

IPC: H01H1/14

Abstract: A switch contacts arrangement comprising a fixed assembly and a movable assembly couplable to said fixed assembly between a closed/open position. The fixed assembly comprises: a main contact group and a pre-arching contact element comprising a central contact pin centrally positioned in a contact seat and having a terminal portion protruding outside said contact seat. The movable assembly comprises a main contact element having a body with a contact end configured to be inserted into said contact seat with a movement, the external surface of said contact end in electrical contact with said main contact elements when inserted into said contact seat. The contact end comprises an opening and a longitudinal channel for housing the central contact pin and further comprises one or more transversal channel(s) conveying a quenching gas from the outside of the main contact element into said longitudinal channel during the opening operation of said movable assembly.

公开(公告)号：US20230368993A1

公开(公告)日：2023-11-16

申请号：US18317496

申请日：2023-05-15

Applicant: ABB Schweiz AG

Inventor： Pierluigi Invernizzi ,  Simone Rambaldini ,  Roberto Tassis

IPC: H01H33/664 ,  H01H33/02

CPC classification number: H01H33/664 ,  H01H33/025

Abstract: A switching apparatus including one or more electric poles. For each electric pole, the switching apparatus includes a first pole terminal, a second pole terminal, and a ground terminal. The switching apparatus further includes a plurality of fixed contacts spaced apart one from another, a movable contact, which is reversibly movable about a corresponding rotation axis according to opposite first and second rotation directions, so that said movable contact can be coupled to or uncoupled from one or more of the above-mentioned fixed contacts, a vacuum interrupter including a vacuum chamber, in which a fixed arc contact and a movable arc contact are enclosed and can be coupled or separated, and a motion transmission mechanism operatively coupled to the movable arc contact of said vacuum interrupter.