Industrial draw-out circuit breaker electrical connection indication
AssigneeGeneral Electric Company
InventorRoger N. Castonguay
Life of this patent
Estimating the term…
Abstract
The front cover of an industrial draw-out circuit breaker is provided with a viewing window that allows visual access to an indicator flag for the purpose of identifying the true status of the electrical power connectors and secondary test connectors extending from the rear surface of the circuit breaker. The three positions of the circuit breaker electrical power connectors relative to the compartment electrical power connectors and the circuit breaker secondary test connectors relative to the compartment secondary test connectors namely TEST, DISCONNECT and CONNECT are separately visible on the indicator flag.
Claims26
An electrical condition indication system for use with a draw-out circuit breaker having electric power and accessory connectors extending from a back part thereof for connection with electric power and accessory connectors arranged within a circuit breaker compartment comprising:
- an indicator flag arranged positionable under a circuit breaker cover viewing window, said indicator flag having indicia identifying a status of said circuit breaker electric power and accessory connectors relative to said compartment electric power and accessory connectors;
- a camming plate pivotally arranged positionable on a side of said draw out circuit breaker, said camming plate defining a camming slot within one side thereof for interacting with a fixed racking pin in said circuit breaker compartment, said camming plate further defining a pair of position drive pins extending from another side thereof;
- and
- a position linkage extending between said indicator flag and said camming plate, said position linkage interacting with said position drive pins to rotate said indicator flag under said circuit breaker cover viewing window, so as to indicate said status of said circuit breaker electric power and accessory connectors relative to said compartment electric power and accessory connectors.
A draw out circuit breaker having electric power and accessory connectors extending from a back part thereof connectable with electric power and accessory connectors arranged within a circuit breaker compartment, said circuit breaker comprising:
- a support frame;
- an operating mechanism within said support frame;
- a movable contact arm for opening and closing a pair of contacts;
- a trip unit programmer interacting with said operating mechanism for articulating said operating mechanism to separate said contacts upon command;
- a circuit breaker cover arranged over said trip unit programmer and said circuit breaker cover having a circuit breaker cover viewing window;
- an ON and an OFF button on said circuit breaker cover for interacting with said circuit breaker operating mechanism to close and open said contacts;
- an indicator flag arranged under said circuit breaker cover viewing window, said indicator flag having indicia identifying a status of said circuit breaker electric power and accessory connectors relative to said compartment electric power and accessory connectors;
- a camming plate pivotally arranged on a side of the circuit breaker, said camming plate defining a camming slot within one side thereof for interacting with a fixed racking pin in said circuit breaker compartment, said camming plate further defining a pair of position drive pins extending from another side thereof;
- and
- a position linkage extending between said indicator flag and said camming plate, said position linkage interacting with said position drive pins to rotate said indicator flag under said circuit breaker cover viewing window, so as to indicate said status of said circuit breaker electric power and accessory connectors relative to said compartment electric power and accessory connectors.
Dependencies are inferred from the claim text.