Question
Download Solution PDFThe rotor in an alternator requires-
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
- The rotor in an alternator is the rotating part that contains the magnetic field.
- This magnetic field is responsible for inducing an alternating current in the stationary stator windings.
- To generate a strong and consistent magnetic field, the rotor requires a direct current (DC) supply.
- This DC supply is typically provided by a separate exciter system, which may include slip rings and brushes to transfer the current to the rotating rotor.
- Pulsed DC, AC, and triangular waves are not suitable for supplying the rotor of an alternator.
- Pulsed DC can cause unwanted harmonics and fluctuations in the output voltage. AC would not generate a constant magnetic field, and a triangular wave would result in a non-sinusoidal output voltage.
Therefore, the rotor in an alternator requires DC for its proper operation.
Last updated on Feb 18, 2025
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