ENVIRONMENTALLY-FRIENDLY INSTANTANEOUS VACUUM CIRCUIT BREAKER USING VACUUM AS ARC QUENCHING MEDIUM

摘要

PURPOSE: An instantaneous vacuum circuit breaker is provided to prevent an arc electric field from being concentrated on an inter-pole due to arc generated when a contact point is separated by installing a plurality of shields in the inner sides and outer sides of a fixing unit and a moving unit.;CONSTITUTION: An insulation tub(210) includes an outlet(212) on the surface thereof. An instantaneous arc contact(230) is combined with one side of an instantaneous arc contact insertion unit(222). A spring(240) is combined between the instantaneous arc contact and the instantaneous arc contact insertion unit. A main contact(270) for a moving unit is controlled by a shaft(220). A plurality of shields are installed outside the insulation tube, the main contact for the moving unit, and a main contact(250) for the moving unit.;COPYRIGHT KIPO 2013