Hi all,
Power angle is voltage angle - current angle with 0 degree angle starting on +x axis and angle increase counter-clock wise (quadrant 1, 2, 3, and 4 CCW). When the complex power, S, is on quadrant 1, I understand that the power is inductive and lagging (since the power angle is positive). When S is on quadrant 4, I also understand that the power is capacitive and leading (since the power angle is negative).
I am looking at the IEC 61557-12 specification. It is saying that quadrant 2 is capactive and quadrant 3 is inductive. I always thought that the top half of the power plan (0 to 180 degree) is inductive and the bottom half (0 to -180 degree) is capacitive. Positive angle will give you a lagging power (inductive), since the angle is voltage angle - current angle; and negative angle will give you a leading power (capacitive). Is that right?
How come the spec is saying that quadrant 2 is capacitive and quadrant 3 is inductive? I don't understand. Can someonen help? Thanks!
Yik
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Kudos and Accepted as Solution are welcome!
