Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 66.3% 33.3% 50% 57.7% 66.3% 33.3% 50% 57.7% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which slots are used in the rotor of an induction motor? Semi closed slots. None of above. Closed slots. Open slots. Semi closed slots. None of above. Closed slots. Open slots. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? either increase or decrease None of these increase decrease either increase or decrease None of these increase decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 50Hz 2HZ 2.5Hz 1 Hz 50Hz 2HZ 2.5Hz 1 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? greater than any of the above equal to less than greater than any of the above equal to less than ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two generators G1 and G2 are to be operated in parallel to deliver a total current of 60 A. Generator one has a terminal voltage of 280 V on no load and 240 V when supplying 40 A current. Similarly the second generator has a voltage of 300 V when on no load and 240 V when supplying of 50 A of current. The output voltage of each generator will be 240 V. 238.2 V. 271.7 V. 256.4 V. 240 V. 238.2 V. 271.7 V. 256.4 V. ANSWER DOWNLOAD EXAMIANS APP