Anti-rebound latch for current limiting switches

Details Anti-rebound latch for current limiting switches Anti-rebound latch for current limiting switches

H - Electricity

01

H

306/327, 306/82

H01H 50/30 (2006.01) H01H 77/10 (2006.01) H01H 9/34 (2006.01)

Patent

CA 1086361

D-4019(CID) ANTI-REBOUND LATCH FOR CURRENT LIMITING SWITCHES ABSTRACT OF THE DISCLOSURE a multipole circuit breaker is constructed with a single rod pivotally mounting all of the movable contact arms to a common one piece molded insulating carrier. Individual torsion springs engage each of the contact arms to provide contact pressure when the circuit breaker is closed. The construction of the contact arms and carrier are such that under severe overcurrent conditions electro- dynamic blowoff forces acting on the contact arms may bring about contact separation that is substantially as great as the contact separation that takes place when the circuit breaker is opened normally by its contact operating mechanism. An individual anti-rebound pin for each pole engages the contact arm of the associated pole to prevent rebound reclosing after electrodynamic opening. A camming means on the carrier releases the anti-rebound latches to permit manual closing of the contacts.

291364

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