Calculate the primary and secondary full-load currents of the transformer. App also determines the turns ratio and type of transformer. Select the number of phases ( 1Φ or 3Φ ) Enter the transformer rating and select the appropriate VA / kVA Enter the primary and secondary transformer voltages and you get Primary full-load currents Secondary full-load currents Turns Ratio = N1 / N2 = V1 / V2 = I2 / I1
