Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.4 0.02 0.04 0.2 0.4 0.02 0.04 0.2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip 0 .001 %. None of these 3 %. 3.33 %. 0 .001 %. None of these 3 %. 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? Same in both induction motors. Squirrel cage induction motor. None of these Slip ring induction motor. Same in both induction motors. Squirrel cage induction motor. None of these Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A smaller air gap in a induction motor helps to reduce the magnetizing current. increase the starting torque. reduce the chance of cogging. reduce the chance of crawling. reduce the magnetizing current. increase the starting torque. reduce the chance of cogging. reduce the chance of crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the mechanical angle α between the stator and rotor poles increases, then the stator current Decreases. Increases. Remains unchanged. None of above. Decreases. Increases. Remains unchanged. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called crawling. slip. skewing. cogging. crawling. slip. skewing. cogging. ANSWER DOWNLOAD EXAMIANS APP
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