1. | The advantage of salient poles in an alternator is ? | |
2. | Due to which of the following reasons, for aircraft alternators high frequency is used ? | |
3. | When an alternator is supplying unity power factor load, the armature reaction will produce ? | |
4. | ln an alternator, the flux created by the armature m.m.f. subtracts directly from the main flux for the following conditions of the load ? | |
5. | Which harmonic will be totally eliminated in an alternator by using a fractional pitch of 4/5 ? | |
6. | In power generating stations (Thermal stations), The usual number of poles employed in alternators are ? | |
7. | An alternator coupled to which prime mover will usually have the highest rotating speed ? | |
8. | The speed of a p-pole synchronous machine in r.p.m. is given by ? | |
9. | In a synchronous machine, all of the following losses are fixed except ? | |
10. | To obtain sinusoidal flux distribution ? | |