《煤矿安全规程》第314条第四项规定“……架空线必须设分段开关,人员上下车时必须切断该区段架空线电源”,我矿多年来,在集中上下班时,人工切断电源比较容易做到,但在平时零散人员上下车时,切新电源始终得不到彻底解决。近年来,电机车电压由250V 提高到500V,这对于人员的安全更应引起重视。为此,我们研制成功了“KZD-1”型电机车架线可控硅自动停送电 “Coal Mine Safety Regulations,” the fourth paragraph of Article 314 “... ... Overhead lines must be divided into sections of the switch, officers must get off the section overhead line power”, mine over the years, in the focus on work, cut off manually Power is easier to do, but in the usual fragmented get on and off, cut the new power is always not completely resolved. In recent years, electric locomotive voltage increased from 250V to 500V, which should pay more attention to the safety of personnel. To this end, we developed a successful “KZD-1” motor frame SCR automatic stop power