Electrical kVAR Auditor
Analyze Reactive Power & Optimize Power Factor Efficiency
Recommended APFC Step Selection
| STAGE | CAPACITY | SWITCH TYPE |
|---|
🔷 What is Capacitor Bank Size Calculator?
A Capacitor Bank Size Calculator helps industries, commercial buildings, and housing societies determine the correct capacitor bank rating (in kVAR) required to improve power factor and reduce electricity demand charges.
Low power factor increases kVA demand, leading to higher electricity bills and penalties imposed by utilities. Installing a properly sized capacitor bank improves system efficiency and lowers monthly costs.
🔷 Why Power Factor Improvement is Important?
- ⚠ Avoid power factor penalties: Eliminate surcharges on your bill.
- 💰 Reduce maximum demand (kVA): Lower the apparent power draw from the grid.
- ⚡ Improve voltage stability: Maintain consistent voltage for sensitive equipment.
- 🔥 Reduce losses in cables and transformers: Minimize heat and $I^2R$ energy losses.
- 📉 Lower electricity bills: Direct financial savings every month.
Most DISCOMs in India mandate maintaining PF above 0.90 or 0.95.
🔷 How Capacitor Bank Size is Calculated?
The required capacitor bank size depends on your connected load (kW), existing power factor, and desired power factor.
This calculator automatically applies the formula and gives accurate results.
🔷 Fixed Capacitor vs APFC Panel
| Fixed Capacitor | APFC Panel |
|---|---|
| Suitable for constant load | Best for varying load |
| Low cost | Higher efficiency |
| Manual switching | Automatic PF correction |
🔷 Who Should Use This Calculator?
- ✔ Manufacturing units
- ✔ Shopping malls
- ✔ Hospitals
- ✔ Housing societies
- ✔ Commercial buildings
- ✔ Electrical consultants
🔷 Final Recommendation
Always select a capacitor bank slightly higher than the calculated kVAR and consult an electrical professional before installation. For fluctuating loads, APFC panels are strongly recommended.