Question 13101 of 749 · Maryland Journeyperson Electrician Exam
What is the full-load secondary current of a 75 kVA, three-phase transformer with a 208Y/120 volt secondary?
Exactly one answer is correct.
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Correct answer to question 13101
- A: 208.2 A
Explanation
I = 75,000 / (208 x 1.732) = 208.2 A. Leaving out 1.732 gives 360.6 A, and 90.2 A is the 480 V primary current.
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