Electrical Machines An ideal synchronous motor has no starting torque because rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. relative velocity between stator and rotor mmf’s is not zero. rotor is made up of salient poles. rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. relative velocity between stator and rotor mmf’s is not zero. rotor is made up of salient poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During no load test, an induction motor draws power for core loss and windage and friction loss. for core loss and copper loss. only for the small copper loss. for copper loss and windage friction loss. for core loss and windage and friction loss. for core loss and copper loss. only for the small copper loss. for copper loss and windage friction loss. 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 0 V. 60 V. 20 V. 40 V. 0 V. 60 V. 20 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In normal dc machines operating at full-load conditions, the most powerful electromagnet is armature winding interpole and compensating windings together interpole winding field winding armature winding interpole and compensating windings together interpole winding field winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA? All of these Operating cost is less. Collecting of large current is simple. Insulation requirement is less. All of these Operating cost is less. Collecting of large current is simple. Insulation requirement is less. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 0.1 Ω 10 Ω 50 Ω 100 Ω 0.1 Ω 10 Ω 50 Ω ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS