For large power transformers, self oil cooled type or air blast type which of the following values af current density may be used?

For large power transformers, self oil cooled type or air blast type which of the following values af current density may be used ?

A. 1.0 to 1.2 A/mm2
B. 1.5 to 2.0 A/mm2
C. 2.2 to 3.2 A/mm2
D. 3.2 to 4.2 A/mm2

Show Answer

Answer: C

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