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
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