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Power Factor Correction Calculator

AS/NZS 61000.3.100

✓ Standard⚙️ Phase 2

Inputs

From energy meter or equipment nameplate

Measured value (0.1–0.99)

DNSP requirement is typically 0.9 or better

Results

Required Capacitor Bank

60

kVAR

(55.32 kVAR required)

Current KVA

133.33

PF 0.75

Corrected KVA

105.26

PF 0.95

Current Saving21.1%

Current kVAR

88.19

Target kVAR

32.87

✅

Target Power Factor

0.95 (meets DNSP requirement)

✅

Capacitor Sizing

60 kVAR (meets requirement)

Important: These results are indicative only. Power factor correction design must comply with AS/NZS 61000.3.100 and site conditions. Do not use for final design without independent verification from a qualified electrical engineer.

Power Factor Correction Guide — AS/NZS 61000.3.100

Power factor correction reduces reactive power and improves system efficiency. By installing capacitor banks, you can reduce energy consumption, lower network charges, and decrease losses in cables and transformers.

Most distribution networks require industrial customers to maintain a power factor of 0.9 or better. This calculator determines the required capacitor bank size (kVAR) to achieve your target power factor from your current power factor.

If your installation has significant harmonics (many non-linear loads), detuning is recommended to prevent resonance with the supply impedance.

Disclaimer: This calculator is a guide only. Always verify with the current standards and consult a qualified electrical engineer.