Transformers with a capacity of up to __________ have a cooling radiator system with natural cooling?
Correct answer: D. 10 MVA
- A. 2 MVA
- B. 5 MVA
- C. 7.5 MVA
- D. 10 MVA
Explanation
Natural cooling with radiator systems is commonly used for transformers up to about 10 MVA; larger units generally require forced oil or air circulation. The 10 MVA limit is the standard design reference used here.
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