| 摘要 |
<p>A Medium Voltage circuit breaker which comprises an insulating base frame supporting:
a pole assembly having, for each phase, an interruption unit housing a fixed contact and a movable contact reciprocally couplable/uncouplable between an open and a closed position;
an actuator to actuate the opening and closing operation of said circuit breaker; and,
a control and diagnostic unit comprising a control box having a casing housing a plurality of accessory devices of said circuit breaker.</p> |
