The difference between a squirrel cage rotor and a wound cage rotor is?

The difference between a squirrel cage rotor and a wound cage rotor is?

• A. How the conductors are connected.
• B. Material of rotor core
• C. Number of poles
• D. Rotor diameter

Answer: (A)

The key idea is how the rotor windings are connected. In a squirrel cage rotor, the conducting bars are embedded in the rotor and are shorted together at the ends by end rings, creating a closed, self-contained circuit. In a wound rotor, the rotor has separate windings that terminate at slip rings, allowing connection to external resistors or circuits to adjust the rotor resistance and control starting torque and speed. This difference in how the conductors are connected is what distinguishes the two rotor types. The rotor core material, the number of poles, and the rotor diameter don’t define the difference.

The key idea is how the rotor windings are connected. In a squirrel cage rotor, the conducting bars are embedded in the rotor and are shorted together at the ends by end rings, creating a closed, self-contained circuit. In a wound rotor, the rotor has separate windings that terminate at slip rings, allowing connection to external resistors or circuits to adjust the rotor resistance and control starting torque and speed. This difference in how the conductors are connected is what distinguishes the two rotor types. The rotor core material, the number of poles, and the rotor diameter don’t define the difference.