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The stator winding of an alternator is normally connected in star to eliminate the ____harmonic component of the voltage waveform.
- a)third
- b)fifth
- c)seventh
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
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Understanding Harmonics in Alternators
Harmonics are undesirable frequencies in electrical systems that can distort the voltage and current waveforms. In alternators, the configuration of the stator winding plays a crucial role in minimizing these harmonics.
Why Star Connection?
- The stator winding of an alternator is typically connected in a star (Y) formation.
- This connection helps in cancelling out specific harmonic components, particularly the third harmonic.
Third Harmonic Component
- The third harmonic is a multiple of the fundamental frequency and can create significant distortion in the output voltage.
- In a star-connected alternator, the phase voltages are 120 degrees apart. This phase separation causes the third harmonic components to cancel each other out.
Benefits of Eliminating the Third Harmonic
- Reduces the overall distortion in the voltage waveform.
- Improves the efficiency and performance of the alternator.
- Enhances the quality of power delivered to the load, ensuring stable operation of electrical equipment.
Conclusion
In summary, the star connection in alternators is a strategic design choice aimed at eliminating the third harmonic component of the voltage waveform, leading to improved efficiency and reduced distortion in the electrical system.
Harmonics are undesirable frequencies in electrical systems that can distort the voltage and current waveforms. In alternators, the configuration of the stator winding plays a crucial role in minimizing these harmonics.
Why Star Connection?
- The stator winding of an alternator is typically connected in a star (Y) formation.
- This connection helps in cancelling out specific harmonic components, particularly the third harmonic.
Third Harmonic Component
- The third harmonic is a multiple of the fundamental frequency and can create significant distortion in the output voltage.
- In a star-connected alternator, the phase voltages are 120 degrees apart. This phase separation causes the third harmonic components to cancel each other out.
Benefits of Eliminating the Third Harmonic
- Reduces the overall distortion in the voltage waveform.
- Improves the efficiency and performance of the alternator.
- Enhances the quality of power delivered to the load, ensuring stable operation of electrical equipment.
Conclusion
In summary, the star connection in alternators is a strategic design choice aimed at eliminating the third harmonic component of the voltage waveform, leading to improved efficiency and reduced distortion in the electrical system.
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The stator winding of an alternator is normally connected in star to eliminate the ____harmonic component of the voltage waveform.a)thirdb)fifthc)seventhd)None of theseCorrect answer is option 'A'. Can you explain this answer?
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