Three Phase Induction Motors 3-phase wound rotor morors are also called _____ motors. Synchronous Commutator Slip ring Series Synchronous Commutator Slip ring Series ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The induction motor has lagging power factor during None of the listed here Operation only Starting only Both starting and operation None of the listed here Operation only Starting only Both starting and operation ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Very costly Not easily maintainable A variable speed motor Essentially a constant speed motor Very costly Not easily maintainable A variable speed motor Essentially a constant speed motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency Zero frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency Zero frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The stator of a three phase induction motor produces _______ magnetic field. Steady Alternating None of the listed here Rotating Steady Alternating None of the listed here Rotating ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ 60 Hz None of the listed here 25 Hz 50 Hz 60 Hz None of the listed here 25 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP