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

Exercise 66

In a balanced three-phase system, the abc -phase-sequence source is delta-connected and V ab = 120 30° V rms. The load consists of two balanced wyes with phase impedances of 10 + j 1 and 20 + j 5 . If the line impedance is zero, find the line currents and the load phase voltage.