Capacitor Bank Calculator
Calculate the required capacitor bank kVAR to correct the power factor. Enter load kW, initial PF, and desired PF for accurate capacitor sizing.
power factor correction calculator
Capacitor Bank (kVAR) = P (tan φ1 – tan φ2), Where, P – load in kW , φ1 = arccos(initial PF), φ2 = arccos(desired PF).
Formula & Table Summary:
- φ = arccos(PF)
- Qc = P × (tan φ1 − tan φ2)
- Input: kW, Initial PF, Desired PF
- Output: Required kVAR
kVAR requirement calculator
This capacitor bank calculator assists you to find out the capacitors needed to bring up the power factor in electrical systems. By inputting existing power factor and the desired new power factor, the tool tells the user how many kVARs of compensation are required by inputting new load power (kW). Capacitor banks minimize reactive power deficiency, and diminish transformer loading, and energy costs, and enhance voltage consistency.
This item finds extensive application in the sizing of capacitors in industrial and commercial complexes as well as in motor driven loads. You can as well use it to estimate savings and guarantee the transformer to be working efficiently. Calculator works both on single and three phase systems. It contains detailed formulas, summary tables, and frequently asked questions, which makes it a trusted reference book by an engineer, electrician and energy manager.
capacitor bank sizing formula
| Load (kW) | Initial PF | Desired PF | kVAR Required |
|---|---|---|---|
| 100 | 0.70 | 0.95 | 57.5 |
| 200 | 0.75 | 0.95 | 96.6 |
| 50 | 0.80 | 0.95 | 22.3 |
