1.test stand for electric coal drill and plug-in lighting unit 2.Three-phase AC 0-127V Brief IntroductionFuncton:The equipment is specially designed for test so electric coal drill and plug-in lighting unitPower supply:380V 50hz, 3-phase,4-lineOutput voltage: isolated 3-phase,adjustable within a range of AC 0-127v High-volage test:10KV ,200MA leakagetiming:999.999SLocking resistance value:0-48