Double-flow compressed-gas operating mechanism for a high-voltage circuit- breaker

摘要

An improved double-flow-type of compressed-gas operating mechanism is provided for actuating a high-voltage circuit-breaker including a double driving head, movable, actuating piston, having different opposite working areas to thereby accommodate the higher power required to effect the opening operation (which may be as much as ten times the power needed for the closing operation) and the provision of suitable means for resiliently retaining the driving piston in either of its open or closed- circuit end positions.