A single-phase, 60 Hz transformer is rated at 500 kVA, 2400:480 V. The parameters of the transformer model are (expressed in Ohms):R1 = 0.06 R2 = 0.003 Rc = 2000Xl1 = 0.3 Xl2 = 0.012 Xm = 500The load

A single-phase, 60 Hz transformer is rated at 500 kVA, 2400:480 V. The parameters of the transformer model are (expressed in Ohms):R1 = 0.06 R2 = 0.003 Rc = 2000Xl1 = 0.3 Xl2 = 0.012 Xm = 500The load connected across the low-voltage (secondary) terminals draws rated current at 0.8 lagging power factor with rated voltage at the terminals.Calculate the high-voltage winding terminal voltage, current and power factor.Compute the transformer energy efficiency for the given condition of load.