A balanced Wye connected load of 15 + j9 Ω/phase is being fed by a Wye connected source. Each of the three lines feeding the load from the source has 0.5 + j0.3 Ω impedance. The voltage at the load is 440 VLL . Find taking Vab at the load to be reference,
1) Line currents in all three lines.
2) Line and phase voltage at the source.
3) Current in each load branch.
4) Power consumed by the load, power factor of the load, power supplied by the source, power factor of the source.