... current, power, power factor, energy in three circuits, with 3DI+1DO.With split-type transformerYD2080-2KThree-phase voltage, frequency in one circuit, each phase current ... , power factor, energy in four circuits, with 3DI+1DO.With split-type transformer Electrical Characteristics Measuring Accuracy Type of transformer close-type split-type Curent0.5%1 ...