Mobile conducting unit for a breaker, including a spring for accelerating the separation of arc contacts

摘要

A disconnector (1) including a movable conductive unit (6) comprising a main electrically conductive body (9) has a main contact (4b) as well as an arcing contact (5b). According to the invention, the unit (6) further comprises a secondary body (14) mounted to move in sliding relatively to the main body (9) along a movement direction (11) of the unit (6), the secondary body (14) being designed to be connected to a connection point (22) of a drive device of the unit (6), the unit further comprising resilient return means (16) interposed between the bodies (9, 14), the switchgear being designed so that during an opening operation the resilient return means (16) can firstly store energy as a result of the secondary body (14) moving relative to the main body (9), and can then release the stored energy in order to cause the main body (9) to accelerate.

主权项

1. A switchgear comprising:
an electrically conductive movable unit (6) comprising an electrically conductive main body (9) including both a main contact (4b) and an arcing contact (5b); wherein said electrically conductive movable unit (6) also comprises a secondary body (14) mounted to move in sliding relatively to said main body (9) along a movement direction (11) of said electrically conductive unit (6), said secondary body (14) being designed to be connected to a connection point (22) of a drive device of said electrically conductive unit (6), said electrically conductive unit further comprising resilient return means (16) interposed between said main body (9) and said secondary body (14), and said switchgear being designed so that during an opening operation said resilient return means (16) can firstly store energy as a result of the secondary body (14) moving relative to the main body (9), and can then release the stored energy in order to cause said main body (9) to accelerate, wherein the main contact (4b) and the arcing contact (5b) are fixed relative to one another in a sliding direction of the main body (9) during the opening operation when the secondary body (14) slides relative to the main body (9).