Arc-resistant shield for protecting a movable contact...

Details Arc-resistant shield for protecting a movable contact... Arc-resistant shield for protecting a movable contact...

H - Electricity

01

H

H01H 73/04 (2006.01) H01H 9/34 (2006.01)

Patent

CA 2197877

In an electrical switching device including a stationary contact carrier having a stationary contact mounted thereon, a contact carrier assembly comprises a movable contact carrier and an arc-resistant protective shield. The movable contact carrier has a movable contact mounted thereon. The movable contact carrier is movable between a closed position and an open position. The movable contact abuts the stationary contact while the movable contact carrier is in the closed position, and the movable contact is separated from the stationary contact while the movable contact carrier is in the open position. The arc-resistant protective shield is mounted to the movable contact carrier and surrounds the movable contact. The shield protects the movable contact carrier from electrical arcs generated during circuit interruption.

Dans un dispositif de commutation électrique comprenant un support de contact fixe sur lequel est monté un contact fixe, un ensemble support de contact comprend un support de contact mobile ainsi qu'un blindage protecteur résistant à l'arc. Sur le support de contact mobile est monté un contact mobile. Le support de contact mobile est mobile d'une position fermée à une position ouverte et inversement. Le contact mobile vient en aboutement sur le contact fixe tandis que le support de contact mobile se trouve en position fermée, et ledit contact mobile est séparé du contact fixe quand le support de contact mobile se trouve en position ouverte. Le blindage protecteur résistant à l'arc est monté sur le support de contact mobile et entoure ledit contact mobile. Le blindage protège le support de contact mobile des arcs électriques générés pedant une coupure du circuit.

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