This paper introduces a new type vacuum circuit-breaker by analyzing the current mine flameproof feed switches.The advantages of it as the inner element for the flameproof feed switch are expatiated.

• 本文在分析国内矿用隔爆馈电开关现状的基础上介绍了一种新型真空断路器,并阐述其作为隔爆馈电开关内装元件的优越性。