Individual circuit breaker pole trip mechanism

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices

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Details

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.

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