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# Power Factor

1).  The Cosine of angle between Current and Voltage is called Power Factor.
P = VI Cosθ OR
Cosθ = P / V I OR
Cosθ = kW / kVA
Cosθ = True Power/ Apparent Power

2). The ratio between resistance and Impedance is Called Power Factor.
Cosθ = R/Z

3). The ratio between Actual Power and Apparent Power is called power factor.
Cosθ = kW / kVA

Click image to enlarge

Beer Analogy of Active or True power, Reactive power, Apparent Power and Power factor.

Lays Chips  Analogy of Real or True Power, Reactive Power, Apparent power & power factor

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## Comparison between Star and Delta Connections

Main Different between Star and Delta Connections Comparison between Star (Y) and Delta (Δ) Connections …

1. Simple and easy to understand, thanks

• Welcome 🙂

• That’s easy to understand!
Now, what analogy can be given to a capacitor to show that even a capacitor is involved in the concept of Power Factor? It will give an even more clear understanding!

• You may check the links at the end of the above post 🙂

• sir i want to save it..how it is possible?<br />easy to perceive,nice way to demonstrate.thanks

2. i too expected same example from you<br />

3. I want to download free e-books. so plz invite me to do so.

4. the total power factor in actual is a product of the displacement power factor(cos[fi]) and the distortion power factor.the distortion power factor is a function of the total harmonic distortion,hence the total power factor of the system decreases on in actual practice on account of the presence of harmonics and other non linearities.

5. REALY GOOD EXPLICATION…Thanks!!<br />

its banificial for us that’s why thanks

7. sir plz upload 3 phase transformer 25 kva step down oil immresd self cooled core and winding calculation.