Question
Download Solution PDFThe rating of a transformer is in kVA because _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 4
Transformer
- A transformer is a static device that transfers energy from one circuit to another without a change in frequency.
- It is used to step up or step down the voltage and current level depending upon the turn ratio.
- The total losses in a transformer depend upon the copper and iron losses.
- Copper losses are due to transformer windings and depend on the flow of current (A) through them.
- Iron losses depend on the voltage (V).
- Therefore total losses are due to voltage (V) and current (A) and not to power factor.
- Thus Transformer ratings are expressed in kVA and not in kW.
Last updated on Jul 1, 2025
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