Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ Is decreased Is increased None of the listed here Remains unchanged Is decreased Is increased None of the listed here Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is running at 2% slip. If the input to rotor is 1000 W, then mechanical power developed by the motor is _______ 980 W 500 W 20 W 200 W 980 W 500 W 20 W 200 W ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have 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 High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Which of the following component is usually fabricated out of silicon steel? Bearings None of these Stator core Shaft Bearings None of these Stator core Shaft ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The no load speed of an induction motor depends on The maximum flux/poles The number of its poles Both supply frequency and number of poles The supply frequency The maximum flux/poles The number of its poles Both supply frequency and number of poles The supply frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux Always revolves in the direction opposite to stator flux None of the listed here Insufficient data Always revolves in the direction of stator flux ANSWER DOWNLOAD EXAMIANS APP
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