Compact racking mechanism for circuit breaker

Details Compact racking mechanism for circuit breaker Compact racking mechanism for circuit breaker

H - Electricity

02

B

306/275

H02B 11/12 (2006.01) H02B 11/133 (2006.01)

Patent

CA 1104181

ABSTRACT OF THE DISCLOSURE Racking mechanism for a draw-out circuit breaker movable into and out of a cubicle wherein a hook at the rear of the cubicle is engaged by a pin on the circuit breaker structure; the pin is connected by links to a travelling nut on a racking shaft extending in the circuit breaker in the direction of movement of the circuit breaker; rotation of the shaft in one direction causes the pin to enter the hook and then, through the travelling nut, draw the racking shaft and hence the circuit breaker toward the rear of the cubicle. Rotation of the racking shaft in the opposite direction causes the racking shaft and circuit breaker to move away from the rear of the cubicle. On pre- determined movement toward the front of the cubicle, the pin is disengaged from the hook to permit with drawal of the circuit breaker from the cubicle.

318265

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