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

تمرين 40

In a balanced three-phase system, the source is a balanced wye with an abc -phase sequence and V ab = 215 50° V rms. The load is a balanced wye in parallel with a balanced delta. The phase impedance of the wye is 5 + j 3 , and the phase impedance of the delta is 18 + j 12 . If the line impedance is 1 + j 0.8 , find the line currents and the phase currents in the loads.