Electrical Motors - Speed vs. No. of Poles and Frequency
The speed of electrical motors with 2, 4, 6 or 8 poles at 50 Hz and 60 Hz.
The speed at which an electric induction motor operates depends on
- the input power frequency, and
- the number of electrical magnetic poles
| Speed (rpm) | ||||
|---|---|---|---|---|
| Poles | Frequency (50 Hz) | Frequency (60 Hz) | ||
| Synchronous | Full Load | Synchronous | Full Load | |
| 2 | 3000 | 2850 | 3600 | 3450 |
| 4 | 1500 | 1425 | 1800 | 1725 |
| 6 | 1000 | 950 | 1200 | 1150 |
| 8 | 750 | 700 | 900 | 850 |
- Slip - in synchronous electrical induction motors
