Power Factor Calculator

Calculate capacitor capacity needed for power factor correction — free electrical engineering tool

Related Categories:Building Services

Qc = P \u00D7 (tan\u03C6\u2081 - tan\u03C6\u2082)

S = P / cos\u03C6

Q = P \u00D7 tan\u03C6

Input Parameters

Active Power P (kW)

Current PF cosφ₁

Target PF cosφ₂

Required Capacitor

Required Reactive Power Qc

55.3 kvar

Recommended Standard Capacitor

75 kvar

Before / After Comparison

Current Reduction

21.1%

Standard Capacitor Sizes

5 kvar10 kvar15 kvar20 kvar25 kvar30 kvar40 kvar50 kvar75 kvar100 kvar