A balanced 480-volt three-phase load draws 35 amperes at 0.85 power factor. Using 1.732, approximately how much real power does it use?
- 24.7 kW
- B14.3 kW
- C20.2 kW
- D29.1 kW
Why A is correct
Three-phase real power is 1.732 × voltage × current × power factor. The calculation is 1.732 × 480 × 35 × 0.85 = 24,731 watts, or approximately 24.7 kW.