Question 13102 of 731 · Texas Journeyman Electrician Exam
What is the full-load primary current of a 75 kVA, three-phase transformer with a 480 volt delta primary?
Exactly one answer is correct.
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Correct answer to question 13102
- B: 90.2 A
Explanation
I = 75,000 / (480 x 1.732) = 90.2 A. Treating the transformer as single phase gives 156.3 A.
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