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US 10,903,029 B2Granted
Circuit breaker inerlock for arc quenching device
AssigneeEaton Intelligent Power Limited
InventorsRobert Judson Burns, David Aaron Metcalf
Life of this patent
Estimating the term…
Abstract
An arc quenching device creates a fault on a bus. A lockout mechanism of a circuit breaker feeding the bus is responsively actuated. Actuating the lockout mechanism may include releasing a spring-loaded mechanism mounted on a cassette that holds the circuit breaker to cause the mechanism to engage a lockout member of the circuit breaker.
Claims19
A system comprising:
- a circuit breaker coupled to a bus and having a lockout mechanism configured to prevent closing of the circuit breaker to feed energy to the bus;
- an arc quenching device coupled to the bus and configured to create a fault on the bus;
- and
- an interlock device external to the circuit breaker and configured to mechanically actuate the lockout mechanism of the circuit breaker responsive to the arc quenching device.
1 more element
An interlock device comprising:
- a spring-loaded mechanism configured engage a lockout member of a circuit breaker;
- and
- an actuator configured to release the spring-loaded mechanism responsive to operation of an arc quenching device configured to create a fault on a bus fed by the circuit breaker to cause the spring-loaded mechanism to move the lockout member.
A method comprising:
- creating a fault on a bus using an arc quenching device;
- and
- responsively mechanically actuating an externally-actuated lockout mechanism of a circuit breaker feeding the bus.
Dependencies are inferred from the claim text.