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

Exercise 76

In a three-phase balanced system, a delta-connected source supplies power to a wye-connected load. If the line impedance is 0.2 + j 0.4 , the load impedance 6 + j 4 , and the source phase voltage V ab = 210 40° V rms, find the magnitude of the line voltage at the load.