公开(公告)号：US20170316904A1

公开(公告)日：2017-11-02

申请号：US15522427

申请日：2015-10-28

Applicant: Alstom Technology Ltd.

Inventor： Didier Rodrigues ,  Denis Frigiere ,  Jean Marc Willieme ,  Frank Jacquier ,  Vincent Royot

IPC: H01H33/12

CPC classification number: H01H33/12 ,  H01H1/06 ,  H01H1/385 ,  H01H2203/044

Abstract: A high- or medium-voltage circuit breaker, in which a movable contact (1) is moved in sliding in order to separate stationary contacts (11, 12) from its sliding surface (2). In accordance with the invention, the stationary contacts (11, 12) have switching portions (9) that separate from the movable contact more or less simultaneously as a result of a setback (19) in the movable contact (1), thereby causing two simultaneous switching arcs to appear (14, 15), which arcs are extinguished much more quickly than a single arc, before the current is transferred to the conventional arcing contacts (5). This disposition enables the stationary contacts (11, 12) and their environment to be less exposed to damage.

公开(公告)号：US10056209B2

公开(公告)日：2018-08-21

申请号：US15522427

申请日：2015-10-28

Applicant: Alstom Technology Ltd.

Inventor： Didier Rodrigues ,  Denis Frigiere ,  Jean Marc Willieme ,  Frank Jacquier ,  Vincent Royot

IPC: H01H33/12

CPC classification number: H01H33/12 ,  H01H1/06 ,  H01H1/385 ,  H01H2203/044

Abstract: A high- or medium-voltage circuit breaker, in which a movable contact (1) is moved in sliding in order to separate stationary contacts (11, 12) from its sliding surface (2). In accordance with the invention, the stationary contacts (11, 12) have switching portions (9) that separate from the movable contact more or less simultaneously as a result of a setback (19) in the movable contact (1), thereby causing two simultaneous switching arcs to appear (14, 15), which arcs are extinguished much more quickly than a single arc, before the current is transferred to the conventional arcing contacts (5). This disposition enables the stationary contacts (11, 12) and their environment to be less exposed to damage.