Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. high resistance High reactance Large slip Low resistance high resistance High reactance Large slip Low resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to (1+S) × rotor input S × rotor input None of the listed here (1-S) × rotor input (1+S) × rotor input S × rotor input None of the listed here (1-S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from None of the listed here 10 to 20 % 20 to 30 % 2 to 5 % None of the listed here 10 to 20 % 20 to 30 % 2 to 5 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 10 to 15% 5% 30 to 50% 15 to 20 % 10 to 15% 5% 30 to 50% 15 to 20 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Parabola Straight line Rectangular parabola Hyperbola Parabola Straight line Rectangular parabola Hyperbola ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The good power factor of an induction motor can be achieved if the average flux density in the air gap is Large Absent Infinity Small Large Absent Infinity Small ANSWER DOWNLOAD EXAMIANS APP
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