Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1980-03-10
1981-07-28
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335195, 335174, 335 38, H01H 7710
Patent
active
042813034
ABSTRACT:
The common trip mechanism of a multi-pole circuit breaker is supplemented by individual breaker pole trip mechanisms operating independently of each other in response to fault current flowing in its breaker pole to unlatch the movable contact arm operating therein for uninhibited, independent opening movement from its closed circuit position to a tripped open position motivated by the electrodynamic forces associated with its breaker pole fault current.
REFERENCES:
patent: 3154657 (1964-10-01), Bonnefois
patent: 3192344 (1965-06-01), Cole
patent: 3464038 (1969-08-01), Murai et al.
patent: 4227161 (1980-10-01), Yamat et al.
Bernkopf Walter C.
Broome Harold
Cahill Robert A.
General Electric Company
Schlamp Philip L.
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