Which is a feature of squirrel cage induction motors compared to wound rotor motors?

Squirrel cage induction motors are known for their simpler design, which is a significant feature distinguishing them from wound rotor motors. The construction of a squirrel cage motor consists of a rotor made of laminated iron cores with a cage-like arrangement of conductive bars, which are typically made of aluminum or copper. This design allows for robust and effective operation without the complexity that comes with a wound rotor motor, which requires additional components such as external windings and slip rings for the rotor.

The simplicity of the squirrel cage motor contributes to its reliability, ease of maintenance, and lower manufacturing costs. In contrast, wound rotor motors, while offering benefits such as greater control over starting torque and speed with external resistances, introduce complexity due to their need for additional components and maintenance requirements.

While there are several attributes associated with squirrel cage induction motors, their straightforward design is a primary characteristic that enhances their popularity in industrial applications.