TDGC,TSGC contact voltage regualtor, variable transformer (Variac) 1.Phase no.: 1/3 phase 2.Input ... 220V, 3P 380V TDGC,TSGC contact voltage regualtor, variable transformer (Variac)Feautreis series energy-saving voltage regulator are made of ... voltage regulating,temperature controlling,light regulating,power controlling and so on.Detail SpecificationModelRating Power(kVA)PhaseNo.Frequency(Hz)Input volt ...