Q2. A 36, 460 V, 100 hp, 60 Hz, four-pole induction machine delivers rated output power at a slip of 0.05. Determine the (a) Synchronous speed and motor speed. (b) Speed of the rotating air gap field. (c) Frequency of the rotor circuit. (d) Slip rpm. (e) Speed of the rotor field relative to the (i) rotor structure. (ii) stator structure. (iii) stator rotating field. (f) Rotor induced voltage at the operating speed, if the stator-to-rotor turns ratio is 1:0.5. Ans.: (a) 1800 rpm, (b) 1800 rpm, (c) 3Hz, (d) 90 rpm, (e)(i) 90 rpm, (ii) 1800 rpm and (iii) 0 rpm, and (f) 6.64V/phase.