Mathematics · Induction Motor Calculations
A 3-phase slip ring induction motor has a rotor resistance of 0.05 Ω/phase and a standstill rotor reactance of 0.4 Ω/phase. Calculate the external rotor resistance per phase required to obtain maximum torque at starting.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.4 Ω/phase
- 20.24 Ω/phase
- 30.35 Ω/phase✓
- 40.34 Ω/phase
Correct answer
0.35 Ω/phase
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