Phasor Diagrams

[Innumerical]

Could someone explain these please?
As in; "Power factors and Phasor diagrams for dummies"!

Thanks.

 

[EpsilonRho]

http://en.wikipedia.org/wiki/Phasor_(electronics)

 

[Wince Ward]

Phasors can tell you if the power factor is leading or lagging, if the
current is lagging the power factor is lagging. Phasor diagrams are
nice because they can show you all the angles and magnitudes of all
parameters. Grab a electrical engineering book and read about
transformers, there equivilent circuits and phasor diagrams.

Power factor is important, by looking at the phasor diagram and seeing
where the current is with respect to the voltage you can tell if some
machine are a motor or generator.

Say P.F. = 08 lagging

Since P.F. = cos theda

Theda = cos-1 P.F.

Theda is the angle between your voltage and current.

Whats Theda ? do you mean Theta ?

http://en.wikipedia.org/wiki/Theta