The percentage resistance and percentage reactance of a ___

The percentage resistance and percentage reactance of a 10 kVA, 400 V/200 V, 3-phase transformer are 2% md 10% respectively.

If the constant losses in the machine are 1%, the maximum possible percentage efficiency of the transformer is

A. 98.32
B. 97.25
C. 96.85
D. 96.12

Show Answer

Answer: B

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