Question 1: [1.3.6] The parameters of a 2300/230 V, 50Hz transformer are given below: R-0.286 92 ' X', -1.780 R 0.81992 R-2502 X-0.78.92 X-1250 The secondary is connected to two parallel loads, the first is 40 kVA at 0.85 p.f Leading and the second is 70 kW at 0.9 p.f leading. Draw the exact equivalent circuit refereed to the H. V side assuming rated voltage across the secondary (L.V side) and then use it to find: 1. Primary voltage 2. Input power factor 3. Power input. 4. Total power output 5. Primary copper loss & Secondary copper loss 6. Core loss 7. Efficiency of the transformer 8. Draw the corresponding phasor diagram