In squirrel cage induction motors, the rotor slots are usually given slight skew in order to
A. reduce windage losses
B. reduce eddy currents
C. reduce accumulation of dirt and dust
D. reduce magnetic hum
Answer:D
In squirrel cage induction motors, the rotor slots are usually given slight skew in order to
A. reduce windage losses B. reduce eddy currents C. reduce accumulation of dirt and dust D. reduce magnetic hum
Explanation: In Squirrel cage rotor, slots in lamination or rotor core is not made parallel to the rotor shaft. A slight angle is maintained due to some advantages. This is called the rotor Skew.