Circuit interrupter having improved closing resistor control...

Details Circuit interrupter having improved closing resistor control... Circuit interrupter having improved closing resistor control...

H - Electricity

01

H

348/1, 306/245

H01H 33/16 (2006.01)

Patent

CA 1257316

19 ABSTRACT OF THE DISCLOSURE Sporadic malfunctions of the closing resistor mechanism employed in a power circuit breaker to connect a resistor in parallel with the breaker contacts (prior to closing of such contacts) is prevented by providing an improved control and actuating means for the resistor mechanism which insures that the latter is reliably reset for use each time the breaker is operated. A self- adjustable component, such as a spring-loaded link, is inserted in the tie-rod structure which couples the break- er operating lever to the closing resistor operating lever. The resulting "elastic" coupling action automat- ically positions the levers in the proper relationship for resetting of the resistor mechanism despite small varia- tions in the complete-open position of the breaker oper- ating mechanism and linkage system.

465930

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