3) A single-phase system as the figure below has two transformers A-B and B-C connected by a line B feeding a load at the receiving end C. The ratings and parameters are as follows: i. Transformer A-B: 500V/1.5kV, 9.6 kVA, leakage reactance = 5% ii. Transformer B-C: 1.2kV/120V, 7.2 KVA, leakage reactance = 4% iii. Line B: series impedance 0.5+3jQ iv. Load C: 120V, 6 kVA at 0.8 power factor lagging a. Determine the value of the load impedance in ohms and actual ohmic impedance of the two transformers referred to both their primary and secondary sides. b. Choosing a 1.2 kV as the voltage base for circuit B and 10 kVA as the system wide KVA base, express all system impedances in per unit. c. What values of sending-end voltage (input voltage of circuit A) corresponds to the give loading condition? A Leeree A-B B cree B-C