Which of the following represents the rotating losses of machine

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Electrical Engineering XYZ MCQs

Which of the following represents the rotating losses of machine:

  1. Friction and windage losses
  2. Eddy current losses
  3. Hysteresis losses
  4. All of the above

Correct answer: 1. Friction and windage losses

Explanation:

  • Friction losses: These occur due to the friction between moving parts of the machine, such as bearings, and the friction between the rotor and any other stationary parts.
  • Windage losses: These are caused by the resistance of the air (or any other fluid) to the rotation of the rotor. This involves air dragging against the rotor as it spins, which consumes power.

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