Planning & EstimatingQuestion 415 of 521
What is the line current of a 30 kVA, three-phase load supplied at 208 V?
a.144 A
b.100 A
c.72 A
d.83 A
Explanation
For a three-phase load, I = VA ÷ (V × 1.732) = 30,000 ÷ (208 × 1.732) = 30,000 ÷ 360 = 83 A. Dividing by 208 alone or by 120 gives the incorrect single-phase-style results.
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