// POWER FACTOR CORRECTION

Avoid reactive power penalties. Size your capacitor bank correctly.

Input Parameters
Total facility load in Kilowatts
Typical uncorrected: 0.65 - 0.75
Recommended: 0.95+
Line-to-Line (e.g. 400, 480)
Utility Demand Charge
Why Correct?
Improving PF from 0.7 to 0.95 releases capacity in your transformer and eliminates utility fines.
Engineering Output
0
Required Capacitor (kVAR)
0
Old Demand (kVA)
0
New Demand (kVA)
0
Transformer Capacity Released (kVA)
$0
Est. Monthly Savings
0 A
Current Freed Up
PHASOR DIAGRAM
-- Old kVA
-- New kVA

Model Assumptions (v1.0)

  • Inputs assume steady-state, lagging (inductive) power factor.
  • Qc is the reactive power compensation required (kVAR). Final design should consider step sizing, voltage, and switching method.
  • Harmonics/resonance are not modeled; detuned reactors may be required in VFD/UPS environments.
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What is Reactive Power?

Inductive loads like motors and transformers require Reactive Power (kVAR) to create magnetic fields. It doesn't perform useful work, but it increases kVA demand and can trigger utility power-factor penalties—especially for factories, chillers, pumps, and heavy industrial loads.

By installing a Capacitor Bank, you supply reactive power locally, improving the power factor and reducing apparent power. Use this calculator to size the required kVAR, estimate demand reduction, and translate correction targets into an actionable capacitor bank specification.

Related Links

Complement your power factor correction plan with practical efficiency tools and deep-dive guides.