Detailed Product Description 1.SummaryThis type of voltage regulator is in the structure of adjustable seff-coupling transformer,it ... along with the coil surface,so that to change the contact position of brush,i.e.change the winding ratio of ... .Main Technical ParameterModel Spec.Single-phase0.5kVA(2A),1kVA(4A),2kVA(8A),3kVA(12A),5kVA(20A),10kVA(40A),15kVA(60A),20kVA(80A ...