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 B
Solution (By Examveda Team)
Eddy current loss in transformers is proportional to the square of the frequency of the applied voltage.As the frequency of the applied voltage increases, eddy current loss increases. This is because higher frequencies induce greater eddy currents in the core material, leading to increased power loss.
Therefore, with an increase in the frequency of the applied voltage, Option B correctly describes that eddy current loss will increase.
This Question Belongs to Electrical Engineering >> Transformers
Eddy current loss will remain unchanged
Option -C is right answer
Eddy current loss is directly proportional to the Square of frequency f^2
So Eddy current loss is also increased with frequency
Will increase please correct this answer.
Will increase please correct this question.
Pe=Ke×Bm²×f²×t²×v in Watts
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.
Eddy current loss Propotional to square or Freuency
So increase it
Correct answer is option B
Eddy current loss is proportional to the square of frequency it should be increase with the increase of frequency..
Ad current propotional to frequency
So why unchanging ad current looses
But we know that eddy current losses per cycle is proportional to frequency.... Then how frequency remains unchanged