Each transmission line of the three-wire, three-phase system of Figure 1 has an impedance 152+j202. The system delivers a total power of 160 kW at 12,000 V to a balanced three- phase load with a lagging power factor of 0.86. a) Determine the magnitude of the line voltage EAr Oof the generator b) Find the power factor of the generator, c) What is the efficiency of the system? ll 15 N 20 Z, = Z, = Z3 Z, EAB 12 kV Z2 ll 15 0 20 15 0 20 2