Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. remains unaffected decreases increases any of the above remains unaffected decreases increases any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? Same in both induction motors. None of these Slip ring induction motor. Squirrel cage induction motor. Same in both induction motors. None of these Slip ring induction motor. Squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting negative sequence currents are generated. the damper bars develop synchronous motor torque. the damper bars develop induction generator torque. the damper bars develop induction motor torque. negative sequence currents are generated. the damper bars develop synchronous motor torque. the damper bars develop induction generator torque. the damper bars develop induction motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the level of the voltage the power level the power factor the frequency the level of the voltage the power level the power factor the frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. Find the speed of stator magnetic field with respect to rotor? zero 1500 rpm 30 rpm 1470 rpm zero 1500 rpm 30 rpm 1470 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of the dc motor is generally of the range 50 ohm. 0.1 ohm. 0.5 ohm. 100 ohm. 50 ohm. 0.1 ohm. 0.5 ohm. 100 ohm. ANSWER DOWNLOAD EXAMIANS APP
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