Exam Question
Differentiate between squirrel cage and wound rotor motors, of the three phase i.e. induction type, in respect of the following: (16)
(a) Rotor construction;
(b) Torque characteristics;
(c) Speed variation.
Class 4 (4th Engineer)
MET
📅 Feb 2026
Reference Answer
A comprehensive differentiation between three-phase Squirrel Cage and Wound Rotor (or Slip-Ring) induction motors is provided below, focusing on rotor construction, torque characteristics, and speed variation.
### (a) Rotor Construction
The fundamental difference between the two motor types lies in the physical and electrical construction of the rotor.
**1. Squirrel Cage Rotor:**
### (a) Rotor Construction
The fundamental difference between the two motor types lies in the physical and electrical construction of the rotor.
**1. Squirrel Cage Rotor:**
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