Power Factor

Power Factor

- the cosine of the phase difference between voltage and current.

- it is also the cosine of the angle of the load.

Consider this is a circuit:

Find the Power Factor:

• First, analyze the circuit.
• You can see to the circuit that when you convert the given load into phasor, you can get the angle.
• The formula is pf = cos(angle of Z)
• The answer must in between Zero to One. 
• If your answer is greater than 1, it means your answer is wrong.
• If it is positive, its LAGGING(inductive).
• If it's negative, its LEADING(capacitive).
• In the circuit, the complex part is positive, it means LAGGING.
• FINISH!!