Spring powered electrical switching apparatus with...

Details Spring powered electrical switching apparatus with... Spring powered electrical switching apparatus with...

H - Electricity

01

H

H01H 3/42 (2006.01) H01H 3/30 (2006.01)

Patent

CA 2396302

A spring biased anti-rollover cam extends the drop-off point on the drive cams of the spring powered operating mechanism of a power circuit breaker to preclude premature tripping in response to high short circuit currents. The anti- rollover cam retracts to facilitate normal reset of the latch mechanism when the spring of the operating mechanism is recharged for the next closing of the breaker.

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