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US 8,299,377 B2Granted
Interlocks for withdrawable breakers
AssigneeGeneral Electric Company
InventorsTomasz Ludwik Jurek, Przemyslaw Eugeniusz Cieply, Przemyslaw Marcin Dabrowski, Marcin Piotr Lagiewka, Jacek Stanislaw Mrowiec, Tomasz Pawel Tomanek
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Abstract
A circuit breaker interlock apparatus can include a circuit breaker, a first moveable arm that is moveable when the circuit breaker is open, a second moveable arm pivotally coupled to the first moveable arm that is movable when the first moveable arm is moveable and a blocking arm, configured to interlock with the second movable arm.
Claims20
A circuit breaker interlock apparatus, comprising:
- a circuit breaker;
- a first moveable arm that is moveable when the circuit breaker is open;
- a second moveable arm pivotally coupled to the first moveable arm that is movable when the first moveable arm is moveable;
- and
- a blocking arm, configured to interlock with the second movable arm.
2 more elements
A circuit breaker system, comprising:
- a module;
- a trolley configured for insertion into the module;
- a circuit breaker disposed on the trolley;
- a first moveable arm coupled to the trolley, and configured to activate a breaker force trip unit in response to movement of the first moveable arm;
- a second moveable arm pivotally coupled to the first moveable arm and the trolley;
- a blocking arm pivotally coupled to trolley;
- and
- a threaded rod configured to couple to the module,
- wherein the blocking arm is configured to interlock with the second moveable arm.
6 more elements
Dependencies are inferred from the claim text.