Circuit breaker electrical closure control apparatus

Details Circuit breaker electrical closure control apparatus Circuit breaker electrical closure control apparatus

H - Electricity

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H01H 81/04 (2006.01) H01H 71/12 (2006.01) H01H 71/46 (2006.01) H02H 7/22 (2006.01)

Patent

CA 1147779

41PR-6140 ABSTRACT OF THE DISCLOSURE A normally open close switch and a normally open arming switch are connected in series with a closing solenoid operatively coupled with hook apparatus for releasably holding breaker movable contacts in a hooked open position against the closing force of a charged breaker operating mechanism. An arm actuates the arming switch in response to the movable contacts assuming their hooked open position, such that subsequent actuation of the close switch effects closing solenoid activation of the hook apparatus to release the movable contacts from their hooked open position. A holding solenoid, wired in shunt with the arming switch, prevents the arm from reactuating the arming switch in the event of sustained actuation of the close switch.

380174

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