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? 1500 rpm 30 rpm zero 1470 rpm 1500 rpm 30 rpm zero 1470 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1 Ω. If the full load current is 20 A, the difference of induced voltage between generator and motor is 40 V. 60 V. 0 V. 20 V. 40 V. 60 V. 0 V. 20 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. rotor can not have any laminations. sipper. thinner. thicker. rotor can not have any laminations. sipper. thinner. thicker. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Capacitor run Resistance split phase Shaded pole Capacitor start Capacitor run Resistance split phase Shaded pole Capacitor start ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Unbalanced supply voltage given to a 3 - φ, delta connected induction motor will cause less heating of the rotor. negative sequence current. less heating of the rotor. all of these. less heating of the rotor. negative sequence current. less heating of the rotor. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp? 20 N. None of these. 15 N. Can't be determined. 20 N. None of these. 15 N. Can't be determined. ANSWER DOWNLOAD EXAMIANS APP
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