Red Seal Electrician Practice
Power factor and three-phaseQuestion 1421 of 1506

The line current to a balanced delta-connected load is 100 A. What is the current in each load winding?

  1. 100 A
  2. 57.7 A
  3. 50.0 A
  4. 173 A
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Correct answer: 57.7 A

In a balanced delta, phase current = line current ÷ √3 = 100 ÷ 1.732 = 57.7 A.

Source: Computed, 7.5: Three-phase Y and Delta Configurations

Practice power factor and three-phase

Questions last reviewed: 18 October 2026