Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. Low resistance high resistance High reactance Large slip Low resistance high resistance High reactance Large slip 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 (1+S) × rotor input None of the listed here (1-S) × rotor input S × rotor input (1+S) × rotor input None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When the rotor of a 3-phase induction motor is blocked, the slip is _____ 0.1 0 1 0.5 0.1 0 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor, no load the slip is generally 4% 2% Less than 1% 1.5 % 4% 2% Less than 1% 1.5 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ Less costly motor is not required Speed control is required High rotor resistance is required during running High starting torque is required Less costly motor is not required Speed control is required High rotor resistance is required during running High starting torque is required ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Straight line Rectangular parabola Hyperbola Parabola Straight line Rectangular parabola Hyperbola Parabola ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS