Electrical Machines In a synchronous motor, damper windings are provided on rotor shaft. pole faces. None of these stator frame. rotor shaft. pole faces. None of these stator frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following DC motors will have percentage increase of input current for the same percentage increase in torque? Series. Shunt. Differntical compound. Cummulative compound. Series. Shunt. Differntical compound. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cross magnetization effects which of the following? reduces the terminal voltage commutation reduction in main field flux both 2 and 3 reduces the terminal voltage commutation reduction in main field flux both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of the dc motor is generally of the range 0.5 ohm. 50 ohm. 100 ohm. 0.1 ohm. 0.5 ohm. 50 ohm. 100 ohm. 0.1 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous reactance( Xs) is the reactance due to leakage flux combined reactance due to armature reaction and leakage flux reactance either due to armature reaction or leakage flux reactance due to armature reaction of the machine reactance due to leakage flux combined reactance due to armature reaction and leakage flux reactance either due to armature reaction or leakage flux reactance due to armature reaction of the machine ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A slip ring Induction motor runs at 290 rpm at full load, when connected to 50 Hz supply. Determine the number of poles and slip. P = 60, s = 0.96 %. P = 20, s = 3.33 %. P = 40, s = 5.79 %. P = 50, s = 4.43 %. P = 60, s = 0.96 %. P = 20, s = 3.33 %. P = 40, s = 5.79 %. P = 50, s = 4.43 %. ANSWER DOWNLOAD EXAMIANS APP
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