⚡ Torque Production in an Induction Motor
Interactive demonstration of rotating magnetic field, slip, rotor current and electromagnetic torque
⚙ Motor Controls
Synchronous Speed
Ns = 120f / P
Slip
s = (Ns − Nr) / Ns
Torque ∝ sR₂ / [R₂² + (sX₂)²]
Ns = 120f / P
Slip
s = (Ns − Nr) / Ns
Torque ∝ sR₂ / [R₂² + (sX₂)²]
1500
Synchronous Speed (rpm)
10.0%
Slip
0.00
Relative Torque
0.0
Rotor Current Index
Motor operating normally — rotor is following the rotating magnetic field.
🔄 Torque Production Process
1. Stator Field
Three-phase AC produces a rotating magnetic field.
Three-phase AC produces a rotating magnetic field.
2. Slip
The rotor runs below synchronous speed, creating relative motion.
The rotor runs below synchronous speed, creating relative motion.
3. Rotor EMF
Relative motion induces EMF and current in the rotor bars.
Relative motion induces EMF and current in the rotor bars.
4. Torque
Rotor current interacts with the magnetic field and produces torque.
Rotor current interacts with the magnetic field and produces torque.