Capacitor Bank Sizing Calculator
Size capacitor banks for power factor correction applications.
Standard Capacitor Sizes (kVAR)
| 480V | 240V | 208V |
|---|---|---|
| 5 | 2.5 | 2 |
| 10 | 5 | 4 |
| 15 | 7.5 | 6 |
| 25 | 12.5 | 10 |
| 50 | 25 | 20 |
| 100 | 50 | 40 |
| 200 | 100 | 80 |
Power Factor Correction Considerations
Benefits
- Reduced electricity demand charges
- Lower conductor and transformer losses
- Increased system capacity
- Voltage improvement
- Avoids utility PF penalties
Cautions
- Avoid leading PF (over-correction)
- Harmonic resonance with VFDs
- Switching transients
- Motor self-excitation risk
- Capacitor inrush current