Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 384 V 96 V 768 V 192 V 384 V 96 V 768 V 192 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 50 Ω 10 Ω 100 Ω 0.1 Ω 50 Ω 10 Ω 100 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The residual magnetism of a self-excited dc generator is lost. To build up its emf again the field winding must be replaced the armature connection must be reversed field winding must be excited by low voltage dc supply the field winding connection must be reversed the field winding must be replaced the armature connection must be reversed field winding must be excited by low voltage dc supply the field winding connection must be reversed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is Both are correct. None of these DC Shunt Motor Synchronous motor. Both are correct. None of these DC Shunt Motor Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 1 Hz 0 Hz 50 Hz 5 Hz 1 Hz 0 Hz 50 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which 1 - Φ motor does operate at high power factor? Capacitor run. Shaded pole. Capacitor start. Split phase. Capacitor run. Shaded pole. Capacitor start. Split phase. ANSWER DOWNLOAD EXAMIANS APP
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