Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 60° 20° 18° 30° 60° 20° 18° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, air gap power is 10 Kw and mechanically developed power is 8 Kw. What are the rotor ohmic losses? 3KW 1.5KW 0.5Kw 2KW 3KW 1.5KW 0.5Kw 2KW ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is 3600 rpm. 1500 rpm. 3000 rpm. 4000 rpm. 3600 rpm. 1500 rpm. 3000 rpm. 4000 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The primary and secondary windings of a transformer are conductively linked. electrically linked. mechanically linked. inductively linked. conductively linked. electrically linked. mechanically linked. inductively linked. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which slots are used in the rotor of an induction motor? Open slots. Semi closed slots. None of above. Closed slots. Open slots. Semi closed slots. None of above. Closed slots. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. relative velocity between the stator and rotor mmf’s is zero. rotor winding is highly reactive. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. relative velocity between the stator and rotor mmf’s is zero. rotor winding is highly reactive. ANSWER DOWNLOAD EXAMIANS APP
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