Besides being an interesting video, it got me wondering why they would use a sine(phi) reading.
I can only come up that the machine can draw positive or negative reactive power and this is used to read it?
I've never seen something alike
Cos(phi) is what in American schools is called the power factor. P= U * I * cos(phi), or however you want to come up with it from the power or the impedance triangle.
I am Albanian and got my degree there and I think that that's how the power factor was written in Soviet books, since most of my professors and their professors graduated in Eastern European countries, and that's how it keeps getting taught.
Besides being an interesting video, it got me wondering why they would use a sine(phi) reading. I can only come up that the machine can draw positive or negative reactive power and this is used to read it? I've never seen something alike
Cos(phi) is what in American schools is called the power factor. P= U * I * cos(phi), or however you want to come up with it from the power or the impedance triangle.
I am Albanian and got my degree there and I think that that's how the power factor was written in Soviet books, since most of my professors and their professors graduated in Eastern European countries, and that's how it keeps getting taught.
Yeah, that's definitely (displacement) power factor. Note the 'IND' and 'CAP' markings.
Interesting, always good to know how it's done somewhere else