kVAR & Power Factor Correction Calculator
Determine the exact capacitor bank kVAR rating needed to improve power factor from current to target levels.
Electrical Load Specs
Required Capacitor Bank
55.3
kVAR
Original Apparent Power:
133.3 kVA
Corrected Apparent Power:
105.3 kVA
Line Current Reduction:
33.7 A saved
kVAR = kW × (tan θ₁ - tan θ₂)
Power Factor Correction & Capacitor Sizing
Low power factor causes high reactive current (kVAR) in distribution lines, forcing generators, transformers, and cables to be oversized. Installing capacitor banks provides the inductive magnetizing current locally, freeing up generator capacity.
kVAR = kW × [tan(arccos(PF₁)) - tan(arccos(PF₂))]