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

Exercise 75

In a balanced three-phase wye-wye system, the total power loss in the lines is 400 W. V AN =105.28 31.56° V rms and the power factor of the load is 0.77 lagging. If the line impedance is 2 + j 1 , determine the load impedance.