Recent content by pmn

> The dot product is just 'vector speak' and takes you further into the business if you're interested. Have you not heard of using Phasors to describe AC? Short answer is 'no' but... I understand the vectors in the 'AC triangle' showing the relationships to real, apparent and reactive power...

Thanks for the replies! I get the concept of reactive power being a function of a shifting of the voltage / current phases. (Thus a power factor of 1 means that the voltage and current rise in unison, correct? Inductance or capacitance in the circuit cause the two waves to become out of...

I have been trying to understand how to calculate real power and power factor in an AC circuit when given only circuit voltage and real/true current as measured by a current transformer (CT). What I (think I) know: 1. Real power P = I^2 * R (but I don't know the circuit resistance) 2...