RETURN                                                                                                                                       HOME

Alternator: Voltage Generation

The elementary 3-phase salient 2-pole synchronous generator has a stator equipped with 3 coils displaced 120° from each other; although shown as concentrated, they actually are distributed.When the rotor is excited with dc and rotated, the resultant field will also rotate so that sinusoidal voltages are generated in the 3 stator phases, displaced 120° in time and having a frequency directly related to rotor speed.

This is a Java Applet created using GeoGebra from - it looks like you don't have Java installed, please go to

Click the green note to create sound, and X to stop.

© M. Riaz