Electrical Machines A 4 pole DC generator runs at 750 rpm and generate an emf of 240 V. The armature is wave wound and has 792 conductors. If the total flux from each pole is 0.0145 Wb. What is the leakage co-efficient? 1.5. 1.2. 1.8. 1.4. 1.5. 1.2. 1.8. 1.4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of less than 90° Greater than 90° 0° 90° less than 90° Greater than 90° 0° 90° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in the dc generator armature winding is DC AC and DC AC None of these DC AC and DC AC None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on air velocity. surface area. color of the paint. temperature difference. air velocity. surface area. color of the paint. temperature difference. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be 30° 18° 36° 72° 30° 18° 36° 72° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following windings are necessary in case of all dc machines? closed winding open type winding wave winding lap winding closed winding open type winding wave winding lap winding ANSWER DOWNLOAD EXAMIANS APP
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