KVAR Calculator: Kw to Kva Conversion
Calculating kvar from kw and kva is crucial for electrical engineers and technicians to design and maintain efficient power systems. Understanding these values helps in sizing transformers, cables, and other equipment, ensuring optimal performance and safety.
- Enter the power (kw) and apparent power (kva) values.
- Select the power factor.
- Click ‘Calculate’.
The formula to calculate reactive power (kvar) is:
kvar = kva * sqrt(1 – pf²)
| Kw | Kva | Power Factor | Kvar |
|---|---|---|---|
| 100 | 125 | 0.8 | 31.25 |
| Power Factor | Reactive Power (Kvar) |
|---|---|
| 0.7 | 58.82 |
- Always use the correct power factor for accurate results.
- Regularly monitor and adjust power factor to optimize efficiency.
What is the difference between Kw and Kva?
Kw (kilowatt) is the real power, measured in watts. Kva (kilovolt-ampere) is the apparent power, which includes both real and reactive power.
IEEE and U.S. Department of Energy provide more resources on power system calculations.