Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 5 Hz 50 Hz 1 Hz 0 Hz 5 Hz 50 Hz 1 Hz 0 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the operating region of slip in a 1-phase induction motor? -2 < S < 2 0 < S < 1 -1 < S < 1 0 < S < 2 -2 < S < 2 0 < S < 1 -1 < S < 1 0 < S < 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is true for an AC synchronous motor? It is a constant speed motor. It is a variable speed motor. It is a high reluctance motor. It is a step angled motor. It is a constant speed motor. It is a variable speed motor. It is a high reluctance motor. It is a step angled motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The main disadvantage(s) of the ward-Leonard system is/are poor overall efficiency. all of above. high maintenance cost. high initial cost. poor overall efficiency. all of above. high maintenance cost. high initial cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will get damaged. run in a direction opposite to previous one. continue running in the same direction as before. not run. get damaged. run in a direction opposite to previous one. continue running in the same direction as before. not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called skewing. crawling. cogging. slip. skewing. crawling. cogging. slip. ANSWER DOWNLOAD EXAMIANS APP
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