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

Exercise 68

In a balanced three-phase delta-wye system, the source has an abc -phase sequence. The line and load impedances are 0.6 + j 0.3 and 12 + j 7 , respectively. If the line current I aA = 9.6 20° A rms, determine the phase voltages of the source.