Difference between Synchronous & Asynchronous Motor
| Synchronous Motor | Asynchronous motor (Induction Motor) |
|---|---|
| Construction Complicated | Construction Simpler |
| Not Self Starting | Self Starting |
| Separate DC source is required for rotor excitation | Rotor Get excited by the induced emf so seperate source is not required |
| speed control is not possible | speed control is possible but difficult |
| Speed is always synchronous irrespective of load | speed is always less than synchronous but never be in synchronous |
| Motor is Very sensitive to sudden changes in load, hunting results | Hunting is absent |
| Motor is costly required frequent maintenance | Motor is cheap, maintenance less frequent |
| It can be used as a synchronous condenser for PF improvement | Cannot use as a synchronous condenser |