Three Phase Induction Motors The frequency of rotor current in a 6-pole , 50 Hz, 3-phase induction motor running at 950 rpm is 1.5 Hz 2.5 Hz 0.05 Hz 5 Hz 1.5 Hz 2.5 Hz 0.05 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 10 to 15% 30 to 50% 15 to 20 % 5% 10 to 15% 30 to 50% 15 to 20 % 5% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Size of a high speed motor as compared to low speed motor for the same HP will be Any of the listed here Smaller Same Bigger Any of the listed here Smaller Same Bigger ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Cast iron Carbon steel High speed steel Stainless steel Cast iron Carbon steel High speed steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Which of the following component is usually fabricated out of silicon steel? Bearings Stator core None of these Shaft Bearings Stator core None of these Shaft ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel cage induction motor is changed by Pole changing Rheostatic control Cascade control None of the listed here Pole changing Rheostatic control Cascade control None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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