| 摘要 |
<p>41PR-6081 INDIVIDUAL CIRCUIT BREAKER POLE TRIP MECHANISM The common trip mechanism of a multi-pole circuit breaker is supplemented by individual breaker pole trip mechanisms operation 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 operating movement from its closed circuit position to a tripped open position motivated by the electrodynamic forces associated with its breaker pole fault current.</p> |
