Three phase Apparent power calculation formula: |S (kVA) | = √3 × V L-L(V) × I (A) / 1000. Three phase Reactive power calculation formula: Q (kVAR) = √(|S (kVA) | 2 – P (kW) 2) Power factor correction capacitor''s capacitance calculation: C (F) = 1000 × Q (kVAR) …