| Basis for Comparison | Stator | Rotor |
|---|---|---|
| Definition | It is a stationary part of the machine | It is the rotating part of the motor. |
| Parts | The outer frame, stator core, and stator winding. | Rotor winding and Rotor core |
| Supply | Three-phase Supply | DC supply |
| Winding Arrangement | Complex | Easy |
| Insulation | Heavy | Less |
| Friction Loss | High | Low |
| Cooling | Easy | Difficult |
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