A 500kVA, 7200-600 V, 60Hz, transformer is operating in the stepdown mode at rated kVA and 0.83 power-factor lagging. the output voltage when the load is removed is 625V. determine the equivalent impedance of the transformer referred to the high side (assume the equivalent resistance is negligible). Hint: draw a phasor diagram showing I E V and the impedance drop. Use trigonometry to solve the IXeq and the determine Xeq.