Question 13021 of 731 · Texas Journeyman Electrician Exam

Each winding of a balanced delta-connected load carries 20 amperes. What is the line current?

Exactly one answer is correct.

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Correct answer to question 13021

  • A: 34.6 A

Explanation

In a delta connection the line current equals the phase (winding) current times 1.732: 20 x 1.732 = 34.6 A. Dividing by 1.732 (11.5 A) is the wye voltage relationship applied in the wrong direction.

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