A 138/12.47kV, Dyn1, 33MVA, Zsc=10%, X/R=15, transformer, is feeding a 22MW, pf=0.8 load on its LV side. Using the per-unit method, answer the following questions. (Show all your calculations.) A) If the voltage on the secondary side is kept at 12.47kV what would be the voltage magnitude on the primary side? What is the value of the copper losses?