// multi-utility computation suite · offline · instant · precise
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eng.induction-motor-slip-torque Calculator
Calculates induction motor slip, rotor speed, rotor current frequency, and developed torque from equivalent circuit parameters. Maximum torque (breakdown torque) occurs at the critical slip — above this slip, additional load causes the motor to stall.
Inputs
Vs V
Electric potential difference (V). Drives current through a circuit. Household: 120 V (US) or 230 V (EU/UK).
R2 Ohm
Opposition to current flow (Ω). V = IR. Resistors in series add; in parallel their reciprocals add.
X2 Ohm
Reference formula or conversion factor shown for context.
S
Reference formula or conversion factor shown for context.
F Hz
Cycles per second (Hz). Audible sound: 20 Hz – 20 kHz. Make sure units match what the formula expects.
Results
rotor current I₂ (A)
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.
electromagnetic torque (N·m) [normalised]
Rotational force (N·m) = force × perpendicular lever arm. High torque at low RPM is ideal for hauling; high RPM suits high-speed applications.
slip at maximum torque
The largest value in the dataset or feasible range.
rotor circuit: I₂ = Vs/√((R₂/s)²+X₂²)
Reference formula or conversion factor shown for context.
breakdown torque
Rotational force (N·m) = force × perpendicular lever arm. High torque at low RPM is ideal for hauling; high RPM suits high-speed applications.
typical running slip
Slip -- the difference between synchronous speed and actual rotor speed in an induction motor, as a fraction. Normal slip: 2-8%. Higher slip means more torque but more heat.