Arc stack for a circuit breaker

H - Electricity – 01 – H

Patent

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Details

H01H 71/00 (2006.01) H01H 9/34 (2006.01) H01H 73/02 (2006.01)

Patent

CA 2158962

An arc stack for receiving a circuit breaker blade moveable between a closed position and an open position, comprises a plurality of arc plates positioned substantially parallel to one another and arranged in a plurality of adjacent groups. Each of the groups includes one or more arc plates having substantially similar respective arc throats formed therein. The respective arc throats progressively decrease in size from group to group along the length of the arc stack in a direction extending away from the closed position of the blade. A connecting support maintains the plurality of arc plates substantially parallel to one another.

Un empilement à découpe incurvée permettant de recevoir une lame de coupe-circuit mobile entre une position fermée et une position ouverte se compose de plusieurs plaques à découpe incurvée disposées substantiellement parallèlement entre elles, et réparties en une série de groupes adjacents. Chaque groupe se compose d'une ou plusieurs plaques à découpe incurvée, ces découpes étant substantiellement semblables d'une plaque à l'autre. Les découpes incurvées successives sont de dimensions décroissantes de groupe en groupe le long de l'empilement de plaques à découpe incurvée, en partant de la position fermée de la lame. Un support d'assemblage maintient l'ensemble des plaques à découpe incurvées substantiellement parallèles entre elles.

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