Three Phase Induction Motors In an induction motor if air gap increased The power factor will be low Copper loss will reduce Bearing friction will reduce Windage losses will be more The power factor will be low Copper loss will reduce Bearing friction will reduce Windage losses will be more 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 None of the listed here S × rotor input (1+S) × rotor input (1-S) × rotor input None of the listed here S × rotor input (1+S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ None of the listed here Increased under running conditions Decreased at starting Increased at starting None of the listed here Increased under running conditions Decreased at starting Increased at starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Reducing supply voltage Changing number of poles Changing winding resistance Changing supply frequency Reducing supply voltage Changing number of poles Changing winding resistance Changing supply frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In the circle diagram for induction motor, the diameter of the circle represents Line voltage Rotor current Running torque Slip Line voltage Rotor current Running torque Slip ANSWER DOWNLOAD EXAMIANS APP
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