A three-phase, 18 MVA, 10 pole, 50 Hz, 11 kV, star-connected synchronous motor has Xd = 5 Ω and Xq = 3 Ω, respectively. It has negligible armature resistance. Calculate the following on full load at 0.8 power factor lagging:
(i) The excitation voltage.
(ii) The power.
(iii) The maximum value of power angle and the corresponding power
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