Formula for unity power factor in single phase
The formula for unity power factor in single phase can be calculated using the following equation:
Power Factor (PF) = Cos(θ) = Real Power (P) / Apparent Power (S)
Where:
- PF is the power factor, it represents the ratio of real power to apparent power.
- θ is the phase angle between the voltage and current.
- P is the real power, it represents the actual power consumed by the load.
- S is the apparent power, it represents the total power supplied to the load.
At unity power factor, the phase angle (θ) is 0 degrees. Therefore, the formula simplifies to:
Power Factor (PF) = Cos(0) = 1
In simple terms, unity power factor means that the real power consumed by the load is equal to the apparent power supplied. It signifies that the load is purely resistive and there is no reactive power component.