(Solved): The nameplate of a \( Y \)-connected synchronous motor has the following information. Hp 20,000, RP ...

The nameplate of a \( Y \)-connected synchronous motor has the following information. Hp 20,000, RPM 1800, PF \( 1.0 \) Volts 6600, Ampere 1350, Phase 3. Frequency 60 Excitation voltage 120, Amp \( 5.5 \) The per-unit synchronous reactance is \( X_{s}=0.95 \), and the per-unit resistance is \( R_{a}=0.012 \). A. Determine the number of poles of the synchronous motor. B. Determine \( X_{5} \) and \( R_{2} \) in ohms. C. For rated (full-load) condition D. Determine the output torque in newton-meter. E. Determine the efficiency. F. Determine the rotational loss. G. Determine the power loss in the field circuit. H. Determine \( E_{f} \).