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

Exercise 106

In a balanced three-phase wye-wye system, the source is an abc -sequence set of voltages and V an = 120 40° V rms. If the a-phase line current and line impedance are known to be 6 15° A rms and 1 + j 1 , respectively, find the load impedance.