Three Phase Induction Motors In an induction motor the relationship between stator slots and rotor slots is that Stator slots are equal to rotor slots Stator slots are not exact multiple of rotor slots Stator slots are exact multiple of rotor slots None of the listed here Stator slots are equal to rotor slots Stator slots are not exact multiple of rotor slots Stator slots are exact multiple of rotor slots None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The cogging of an induction motor can be avoided by Proper ventilation Using DOL starter Auto transformer starter Having number of rotor slots more or less than the number of stator slots Proper ventilation Using DOL starter Auto transformer starter Having number of rotor slots more or less than the number of stator slots ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. Large slip high resistance Low resistance High reactance Large slip high resistance Low resistance High reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 90% 40% None of the listed here 65% 90% 40% None of the listed here 65% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 2 Hz 200 Hz 50 Hz 20 Hz 2 Hz 200 Hz 50 Hz 20 Hz 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
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