Arc chute assembly

Details Arc chute assembly Arc chute assembly

H - Electricity

01

H

H01H 73/18 (2006.01)

Patent

CA 2529822

The arc plates of an arc chute assembly for a circuit breaker are supported in spaced, stacked relation by a structural shell molded of a gas evolving resin. Generation of arc gases, that cool the arc thereby increasing the current interruption capability of the breaker, can be further enhanced by gas evolving additives included in the resin. Arc gas flow is increased to further cool the arc by molding the interior walls of the structural shell to form venturies between the arc plates. One or more elongated fibers wrapped around the stack of arc plates in an oval strengthen the structural shell to withstand the increased pressure generated by the high arc gas volume.

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