A single-phase, (7200)/(240)-V, 15-kVA, 60-Hz transformer has a Z_(eq2) of 0.06+j0.25-Omega. R_(cLV) = 800-Omega and x_(mLV) = 160-Omega.
(a) When the transformer is delivering rated current at 240-V to a 0.8 lagging power factor load, find the primary current and terminal voltage.
(b) What error would result in calculating the primary voltage and current if the transformer were taken to be ideal?