INPUT VOLTAGE-0-230V(AC) 1PH/0.470V(AC) 3PH
INPUT VOLTAGE-0-270V(AC) 1PH/0-470V(AC) 3PH
CAPACITY : 2A -40A Air Cool 1PH(40A Up Oil Cool)
Variable auto transformer type of transformer with just one coil that is shared by the primary and secondary side of the circuit.
The section of winding designated as the primary part of the winding is connected to the AC power source with the secondary being part of this primary winding.autotransformer is used mainly for the adjustments of line voltages to either change its value or to keep it constant.