We calculate the frequency with the formula beneath:
| f = p*n/60 | f: the frequency in Hz |
| p: the number of pole pairs | |
| n: the engine speed in rpm |
In the table below, you will find a few examples we calculated using this formula.
| Pole pairs | Engine speed (rpm) | Frequency (Hz) |
|---|---|---|
| 1 | 3000 | 50 |
| 2 | 1500 | 50 |
| 4 | 750 | 50 |
| 4 | 3000 | 200 |
| 8 | 1500 | 200 |
| 8 | 3000 | 400 |
In some countries, they have other frequencies, which causes the engine speeds to change as well.
