Physics · Electrical Machines
Which of the following statements is NOT true for a slip ring induction motor when compared to a squirrel cage induction motor?
- 1Construction is complicated due to the presence of slip rings and brushes.
- 2The rotor winding is similar to the stator winding.
- 3Speed control by the rotor resistance method is not possible.✓
- 4Rotor copper losses are relatively high and hence it is less efficient.
Correct answer
Speed control by the rotor resistance method is not possible.
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