The Torque–Slip Curve: Starting, Maximum and Rated Torque, the Stable Region & the Operating Point
This lesson is part of the course
In this lesson
You compute the torque of a fictional induction motor over a slip table from a simplified equivalent circuit, chart the torque–slip curve, find the slip and size of the maximum torque in closed form and estimate where the rated load torque line crosses the stable part of the curve.
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Lessons in this course
- Ideal Transformers: Turns Ratio, Voltages, Currents, Apparent Power & Impedance Seen Through Locked
- Equivalent Circuit & Voltage Regulation: |Z|, Per-Unit Impedance and Phasors in Two Columns Locked
- Efficiency at Every Load: Fixed Core Loss, Copper Loss ∝ Load², Maximum Efficiency & All-Day Efficiency Locked
- DC Motors: Back-EMF, Speed and Torque, the Speed–Torque Line & a Starting Resistor Locked
- Induction Motors – Speed & Slip: Synchronous Speed, Slip, Rotor Frequency and Speed at Part Load Locked
- Induction Motors – Power Flow: Air-Gap Power, Rotor Copper Loss = s·P_ag, Shaft Torque & an Energy-Flow Chart Locked
- The Torque–Slip Curve: Starting, Maximum and Rated Torque, the Stable Region & the Operating Point Locked
- Capstone – Motor Energy Costs: Duty Cycles, Efficiency Classes, a Variable-Speed Fan & Payback Locked