Circuit breaker closing springs button interlock mechanism

Details Circuit breaker closing springs button interlock mechanism Circuit breaker closing springs button interlock mechanism

1997-06-19

1999-03-30

Luebke, Renee S.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Operating mechanism structure or arrangement

200400, 200 5001, H01H 300, H01H 3100, H01H 500

Patent

active

058892508

ABSTRACT:
An air circuit breaker ratcheting mechanism includes a ratchet and pawl whereby the closing springs charging gear is prevented from reverse rotation during the closing springs charging operation. Upon completion of the charging operation, the ratchet and pawl become disengaged from the charging gear when the charged closing springs are released in response to a manual closing button depression. An interlock arrangement prevents release of the holding prop to discharge the charged circuit breaker closing springs unless the circuit breaker operating handle is completely in the home position.

REFERENCES:
patent: 4167988 (1979-09-01), Acampora et al.
patent: 5495082 (1996-02-01), Zaffetti et al.

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