DRAW-IN AND DRAW-OUT MECHANISM OF AN ELECTRICAL CIRCUIT BREAKER WITH MAIN AND AUXILIARY CIRCUITS

摘要

ABSTRACT OF THE DISCLOSURE:A d r a w - i n m e c h a n i s m f o r a n e x t r a c t i b l emolded insulated case circuit breaker, equipped with main andauxiliary circuits with fixed and movable connectors.The fixed connectors are arranged on the upper horizontal wallof the case, and the interacting movable connectors plug intothe fixed connectors when the circuit breaker is immobile. Thereversible mechanism movement transmission system comprises afirst mechanical link with the movable connectors drive device,and a second mechanical link with the movable circuit breakersupport, the assembly being arranged so that the firstmechanical link is active when the second mechanical link isbroken, and vice-versa.The racking mechanism comprises an operating device with ahandle, and a movable mechanical support having a pair ofsymmetrical rails sliding in slide plates of the chassis, and arail locking system in the drawn-in and drawn-out positions.