Interactive Physics Simulation

Generator Physics Simulator

From Rotor Rotation to Three-Phase Voltage — Live

A synchronous generator rotor spins inside a fixed stator. Change the pole count and grid frequency to see how synchronous speed responds (Ns = 120f / P), watch magnetic flux sweep past each phase winding, and read the resulting Faraday's-Law EMF and three-phase sine waves in real time.

Synchronous Ns1500 rpm
Rotor Speed0 rpm
Pole Config4-pole
Rotor Angle
Output Freq50 Hz

Synchronous Generator — Cross-Section

Red sectors = North pole · Blue sectors = South pole · Glowing rings = stator phase windings (brighter as flux peaks)

Three-Phase Output

Phasor Diagram

Faraday's Law — Phase A

E = −N (dΦ/dt)
Flux Φ
1.00 Φmax
dΦ/dt
0.00
Induced EMF
+0.00 Vm

EMF peaks exactly where dΦ/dt (the rate of change of flux) peaks — not where flux itself peaks. That's Faraday's Law in motion.

Phase A conductor — electrons oscillate with the local instantaneous current
Phase B conductor — 120° behind Phase A
Phase C conductor — 240° behind Phase A