Circuit breaker drawout with engaged position latch

Details Circuit breaker drawout with engaged position latch Circuit breaker drawout with engaged position latch

1978-10-27

1980-05-06

Tolin, Gerald P.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

200 50AA, 200322, 200153V, H02B 104

Patent

active

042020271

ABSTRACT:
Drawout apparatus includes a carriage mounting a circuit breaker and supported on rails to facilitate racking screw induced movement of the breaker into and out of an electrically engaged position with respect to switchboard primary disconnect contacts. A carriage mounted latch lever is controllably positioned in response to the turning of the racking screw so as to latchably engage a switchboard mounted latch as the circuit breaker arrives at its engaged position, thereby assisting in holding the breaker thereat against blowout forces attending a high fault current interruption. Initial rotation of the racking screw to withdraw the breaker from its engaged position incidentally disengages the latch lever and latch.

REFERENCES:
patent: 3663773 (1972-05-01), Powell
patent: 4004113 (1977-01-01), Ericson
patent: 4012610 (1977-03-01), Ericson

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