Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 50% 66.3% 33.3% 57.7% 50% 66.3% 33.3% 57.7% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A flat compound generator is obtained from compound generator by connecting a variable resistor in series with the series field in series with the shunt field in parallel with the series field in parallel with the shunt field in series with the series field in series with the shunt field in parallel with the series field in parallel with the shunt field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are all of above. high initial cost. high maintenance cost. poor overall efficiency. all of above. high initial cost. high maintenance cost. poor overall efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce hysteresis loss. friction and windage loss. eddy current loss. copper loss. hysteresis loss. friction and windage loss. eddy current loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 20° 30° 60° 18° 20° 30° 60° 18° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Drop in speed from no load to full load is very high in Cummulative compound motor with interpoles. Shunt motor with interpoles. Series motor without interpoles. Series motor with interpoles. Cummulative compound motor with interpoles. Shunt motor with interpoles. Series motor without interpoles. Series motor with interpoles. ANSWER DOWNLOAD EXAMIANS APP
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