The heat dissipating capability of transformers of ratings higher than 30 kVA in increased by providing which of the following ?
Correct answer: E. All of the above
- A. Corrugations
- B. Fins
- C. Tubes
- D. Radiator tanks
- E. All of the above
Explanation
Corrugations, fins, tubes and radiator tanks all increase the external surface area available for heat transfer from transformer oil to the surrounding air. Hence, all the listed arrangements improve heat dissipation.
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