4) Textbook problem 2.47: Two three-phase generators supply a balanced, three-phase load through
separate three-phase lines. The load absorbs 30 kW at 0.8 power factor lagging. The line impedance
is 1.4 + j1.6 $\Omega$ per phase between generator G1 and the load, and 0.8 + j1 $\Omega$ per phase between
generator G2 and the load. If generator G1 supplies 15 kW at 0.8 power factor lagging, with a terminal
voltage of 460 V line-to-line, determine:
a) The current flowing from generator G1. State your zero angle reference.
b) The line-to-line voltage at the load terminals.
c) The current through the load.
d) The line-to-line voltage at the terminals of generator G2.
e) The three-phase real and reactive power supplied by generator G2.