Examveda
Examveda

For given applied voltage, with the increase in frequency of the applied voltage

A. eddy current loss will decrease

B. eddy current loss will increase

C. eddy current loss will remain unchanged

D. none of the above

Answer: Option C

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Comments ( 6 )

  1. Sàmpath Nani
    Sàmpath Nani :
    2 years ago

    Pe=Ke×Bm²×f²×t²×v in Watts

  2. Jenish Akabari
    Jenish Akabari :
    2 years ago

    Eddy Current loss in transformer is denoted as,
    Pe = Ke * f^2 * Bmax^2 * t^2 * v^2
    Hence apparently, the eddy current loss Pe ∝ f^2, but for any given voltage, if f decreases, Bm increases correspondingly and if f increases Bm decreases correspondingly. Hence the eddy current loss Pe at any given voltage, is independent of frequency.

  3. Manish Saini
    Manish Saini :
    2 years ago

    Eddy current loss Propotional to square or Freuency
    So increase it
    Correct answer is option B

  4. Shatadal Mondal
    Shatadal Mondal :
    3 years ago

    Eddy current loss is proportional to the square of frequency it should be increase with the increase of frequency..

  5. Ramesh Kumar
    Ramesh Kumar :
    3 years ago

    Ad current propotional to frequency
    So why unchanging ad current looses

  6. TR Sharma
    TR Sharma :
    5 years ago

    But we know that eddy current losses per cycle is proportional to frequency.... Then how frequency remains unchanged

Related Questions on Transformers

A good voltage regulation of a transformer means

A. output voltage fluctuation from no load to full load is least

B. output voltage fluctuation with power factor is least

C. difference between primary and secondary voltage is least

D. difference between primary and secondary voltage is maximum