Patent ID: 6917006
Filing Date: 2005-07-12
Classification: H01H

Abstract:
1. A spring-loaded operating mechanism for a rectilinear motion circuit-breaker, for performing an open-close-reopen cycle, said mechanism operating on an operating rod of the circuit-breaker and comprising: a closing spring and an opening spring, wherein said opening spring operates on the operating rod, said closing spring operates on one end of a crank whose other end is connected to a shaft fastened to a flywheel and on which is mounted a closing cam that cooperates with a roller on the operating rod; a closing pawl configured to retain said closing spring in a compressed position, wherein opening said closing pawl releases said closing spring and causes rotation of the closing cam in a direction in which the closing cam closes the circuit-breaker and rearms said opening spring; a rearming motor coupled by a freewheel mechanism to the shaft; and a pawl configured to trigger opening adapted to retain the operating rod against a force of said opening spring in a closed position of the circuit-breaker and to receive an opening command.