Basic Engineering Circuit Analysis 11th Edition by David Irwin ,Robert Nelms

Exercise 78

In a balanced three-phase system, the source has an abc- phase sequence, is wye-connected, and V an = 120 20° V rms. The source feeds two parallel loads, both of which are wye-connected. The impedance of load 1 is 8 + j 6 . The complex power for the a phase of load 2 is 600 36°VA. Find the line current for the a phase and the total complex power of the source.