Electric racking device for racking circuit breakers into switch

Details Electric racking device for racking circuit breakers into switch Electric racking device for racking circuit breakers into switch

1994-03-15

1995-12-19

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

361605, H01H 900

Patent

active

054770173

ABSTRACT:
A racking assembly is provided for racking a circuit breaker into and out of electrical switchgear having a cell adapted to receive the circuit breaker and a cell door for enclosing the circuit breaker within the cell, the racking assembly includes a shaft having a first end adapted to be coupled to the circuit breaker and a motor coupled to a second end of the shaft for applying a rotational torque to the shaft. An anti-rotation assembly is coupled to the motor for preventing the motor from rotating when it is applying the rotational torque to the shaft.

REFERENCES:
patent: 3716684 (1973-02-01), McMillen et al.
patent: 4317160 (1982-02-01), Tillson et al.
patent: 4396813 (1983-08-01), Hesselbart et al.
patent: 5164883 (1992-11-01), Little et al.
patent: 5200585 (1993-04-01), Davies

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