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Power factor correction

Size a detuned capacitor bank for your target power factor.

IEC 60871-1 · IEC 61642

1 · Supply

Line voltage
V
Frequency

2 · Load

Active power
kW
Existing power factor0.50 to 0.99 in steps of 0.01
Desired power factor0.80 to 1.00; must exceed the existing value

3 · Bank

Detuning factor %p (Xl/Xc)Default 6 %; usual band 4 to 6 %. Below-fifth tuning needs more than 4 %.
%
ConfigurationWorksheet guide: Double Star from 1000 kVAr
Results update as you change inputs. Units: V, kW, kVAr.View results

Results

Correction, capacitor and reactor sizing with harmonic tuning.

solved
Detailed analysis Summary, capacitor, reactor and audit

Document

Keep project details, calculation notes and references together.

Calculation record
Notes
  1. Capacitor bank sized to raise power factor from existing to target at the stated active load.
  2. Series detuning reactor (%p = Xl/Xc) sets series resonance; below-fifth tuning requires %p > 4. Harmonic safety is unassessed.
  3. Capacitor units must be rated for the elevated terminal voltage Vc and harmonic loading — verify per IEC 60871-1.
References
  • Awaiting inputs
— · Rev A · — Report Print / Save as PDF A professional aid, not engineering judgement — you remain responsible for verifying every input and result against the standards that apply to your work.