Question: how do u calculate kw?
Answer: P(kW) = √3 × PF × I(A) × VL-L(V) / 1000. kilowatt = √3 × PF × amp × volt / 1000. kW = √3 × PF × A × V / 1000. P = √3 × 0.8 × 3A × 110V / 1000 = 0.457kW.