Basic Theory
Power Factor Details
Power Factor Details Definition Power factor is the ratio of active power to apparent power. Significance - Reflects electrical energy utilization efficiency -…
About 5 min read intermediate
Power factorReactive compensationEnergy efficiency
Power Factor Details
Definition
Power factor is the ratio of active power to apparent power.
PF = P / S = cos(φ)Significance
Typical Values
| Load Type | PF Value |
|---|---|
| Pure resistance | 1.0 |
| Motor | 0.7-0.85 |
| Fluorescent lamp | 0.5-0.9 |
Power Factor Correction
Principle
Connect capacitor in parallel to compensate reactive power
Calculation
Qc = P × (tan(φ1) - tan(φ2)) After reading
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