Three Phase Induction Motors 3-phase wound rotor morors are also called _____ motors. Commutator Synchronous Series Slip ring Commutator Synchronous Series Slip ring ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have Zero frequency The same frequency as the slip frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. Zero frequency The same frequency as the slip frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In medium sized induction motor, the slip is generally around 14% 0.04 % 4 % 0.4 % 14% 0.04 % 4 % 0.4 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The number of slip rings on a squirrel cage induction motor is usually Two Three None One Two Three None One ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ S × rotor input (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input S × rotor input (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor on load resemble those of a transformer whose secondady is _______ Supplying a variable resistive load Short circuited None of the listed here Open circuited Supplying a variable resistive load Short circuited None of the listed here Open circuited ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS