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US 5,311,161 AGranted
Molded case circuit breaker motor operator interface assembly
AssigneeGeneral Electric Company
InventorsWilliam H. Calder, Roger N. Castonguay
Life of this patent
Estimating the term…
Abstract
A motor operator interface assembly allows a large industrial-rated circuit breaker to be manually operated between its ON and OFF conditions as well as electrically driven by a motor operator. The interface assembly includes a motor driver plate that connects and disconnects the circuit breaker operating handle from the motor operator unit to allow either manual or motor-driven operation. A drive pawl and drive plate insure resetting the circuit breaker.
Claims14
A motor-controlled molded case circuit breaker comprising:
- a circuit breaker having an operating mechanism arranged for turning the circuit breaker between ON and OFF conditions;
- an externally accessible operating handle on said circuit breaker for interacting with said operating mechanism to reset said circuit breaker operating mechanism;
- a motor operator having an electric motor and an interface unit for interacting with said operating mechanism to turn said circuit breaker between ON and OFF conditions, said interface unit comprising means releasably connecting said electric motor with said operating mechanism to allow translation of said operating handle independently from said electric motor and a shaft extending from said operating handle at one end to within a hub at an opposite end, said hub being adapted for connection with said operating mechanism;
- a handle drive plate attached to said hub, said handle drive plate receiving said shaft and being shaped for rotating in unison with said shaft;
- and
- a motor drive plate intermediate said handle drive plate and said hub, said motor drive plate including an actuator pin arranged for connection with a motor connector link.
3 more elements
A motor operator-circuit breaker interface unit comprising:
- means releasably connecting a circuit breaker operating handle from an electric motor for translating said operating handle independently from said electric motor;
- a shaft extending from said operating handle at one end to within a hub at an opposite end, said hub adapted for connection with said operating mechanism;
- a handle drive plate attached to said hub, said handle drive plate being shaped for rotating in unison with said shaft;
- and
- a switch actuator plate superjacent said handle drive plate and a disengagement link intermediate said handle drive plate and said switch actuator plate, a disengagement tab on a bottom of said disengagement link extending within a slot on said handle drive plate.
2 more elements
Dependencies are inferred from the claim text.