Problem 1, part B         A three-phase Delta/Wye, 30-kVA, 2…

Problem 1, part B         A three-phase Delta/Wye, 30-kVA, 2200 Δ/381Υ volt transformer has the following parameters:      R1 = 4.0 Ω      R2 = 0.06 Ω      X1 = 10.0 Ω      X2 = 0.15 Ω Assume an infinitive core impedance Subscript 1 refers to high side, Δ. A Y connected load is connected to the 381-volt transformer terminal, The load absorbs 30-kva at 381/30θ volts and 0.8 PF lagging.      1-B. Calculate the transformer efficiency. Enter the percentage as a value, i.e. 8.3% as 8.3