Question
Download Solution PDFThe output current corresponding to maximum efficiency of a transformer is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The efficiency of a transformer is maximum when its iron loss (core loss) is equal to the copper loss.
Let iron loss be denoted by \( W \), and copper loss by \( I_2^2 R \), where:
- \( I_2 \) is the output current
- \( R \) is the equivalent resistance referred to the secondary side
Condition for maximum efficiency:
\( I_2^2 R = W \)
Solving for \( I_2 \):
\( I_2 = \sqrt{\frac{W}{R}} \)
Last updated on Jul 15, 2025
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