The 1-Phase and 3-Phase Induction Motor is compared based on the factors such as power factor, efficiency, maintenance, supply, starting torque, applications, etc.
| Features | 1-Phase Induction Motor | 3-Phase Induction Motor |
| Supply | Works on 1-phase supply | Works on 3-phase supply |
| Starting torque | Low | High |
| Power factor | Low | High |
| Efficiency | Less | High |
| Maintenance | They are easy to repair and maintain. | Difficult to repair and maintain. |
| Cost | Cheaper | More expensive |
| Construction | Simple and easier to construct | More complicated to construct |
| Reliability | More reliable | Less reliable |
| Types | 1. Split phase induction motor 2. Capacitor start inductor motor 3. Capacitor start capacitor run induction motor 4. Shaded pole induction motor |
1. Squirrel cage induction motor 2. Slip ring induction motor or wound induction motor or phase wound induction motor |
| Applications | household appliances like vacuum cleaner, fans, washing machine, centrifugal pump, blowers, washing machine, small toys, etc. | Three-phase induction motors are widely used in industrial and commercial drives because they are rugged, reliable and economical. |
Note: The 1-Phase Induction motor is not self-starting motor while 3-phase induction motor is a self-starting motor.
