Compact racking mechanism for circuit breaker

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

1978-01-16

1980-06-24

Scott, James R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

H01H 920

Patent

active

042096766

ABSTRACT:
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 predetermined movement toward the front of the cubicle, the pin is disengaged from the hook to permit withdrawal of the circuit breaker from the cubicle.

REFERENCES:
patent: 4101744 (1978-07-01), Wilson

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