Power Factor Calculator — Formule
## Power Factor
Power factor indicates how effectively electrical power is being converted to useful work.
### Formulas
**PF = P / S = kW / kVA**
**Q = sqrt(S^2 - P^2)**
A power factor of 1.0 means all power is real (useful). Low power factor means more current flows than needed, increasing losses. Industrial facilities typically aim for PF > 0.95 to avoid utility penalties.
Power factor indicates how effectively electrical power is being converted to useful work.
### Formulas
**PF = P / S = kW / kVA**
**Q = sqrt(S^2 - P^2)**
A power factor of 1.0 means all power is real (useful). Low power factor means more current flows than needed, increasing losses. Industrial facilities typically aim for PF > 0.95 to avoid utility penalties.
Exemple Résolu
A facility drawing 30 kVA with 25 kW real power.
- PF = 25 / 30 = 0.833
- Q = sqrt(30^2 - 25^2) = sqrt(900 - 625) = sqrt(275) = 16.58 kVAR
- Phase angle = arccos(0.833) = 33.6 degrees