Fault interrupter and operating mechanism therefor

Details Fault interrupter and operating mechanism therefor Fault interrupter and operating mechanism therefor

H - Electricity

01

H

H01H 71/10 (2006.01) H01H 3/30 (2006.01) H01H 73/00 (2006.01)

Patent

CA 2255397

A fault interrupter is provided that includes a high-speed disconnect in series with an interrupter wherein the circuit opening is via the interrupter and the circuit making is via the disconnect. A stored energy disconnect operating mechanism operates the disconnect between ground, open and closed positions and also charges the interrupter mechanism during a slow opening of the disconnect without fully charging the disconnect operating mechanism. Thus, the required operating forces to open the disconnect and charge the interrupter mechanism are reduced. During a manual opening, the disconnect operating mechanism trips open the interrupter, then only partially charges to begin opening the disconnect before releasing the stored energy. Continued operation of the disconnect operating mechanism slowly drives the disconnect open while charging the interrupter mechanism and closing the interrupter. The interrupter mechanism remains charged during operation of the disconnect between the open and ground positions by the disconnect operating mechanism.

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