Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 50 Hz 1 Hz 0 Hz 5 Hz 50 Hz 1 Hz 0 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Addition of 0.3 % to 4.5 % silicon to iron None of these reduces the saturation magnetization. increases the electrical resistivity of iron. increases the hysteresis loss. None of these reduces the saturation magnetization. increases the electrical resistivity of iron. increases the hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the All of these armature core main field pole shoe All of these armature core main field pole shoe ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is possible in DC series motor. DC shunt motor with field weakening control. DC compound motor. DC shunt motor with armature resistance control. DC series motor. DC shunt motor with field weakening control. DC compound motor. DC shunt motor with armature resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct ? None of these Both A and B. Compensating winding will act under the pole. Inter pole winding will act in interpolar region. None of these Both A and B. Compensating winding will act under the pole. Inter pole winding will act in interpolar region. ANSWER DOWNLOAD EXAMIANS APP
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