Hi, I am studying a project that measures the reactance power. Additionally defines the capacitive and inductive reactance power. I just added some lines the existing emon library but I dont know how to define capacitve and inductive reactance power. Is it possible to do that with that circuit and emon library?
http://openenergymonitor.org/emon/buildingblocks/how-to-build-an-arduino...
Thanks
Re: Reactance Power Calculations
In short - no.
If you study the way that emonLib works, there is no means of extracting the imaginary component of the current, which I think is what you are asking for.
You need to delay the voltage waveform by 90° electrical then perform the multiplication of current and (delayed) voltage followed by taking the average to give vars, in exactly the same way that real power is calculated. The 3-phase sketch delays the voltage wave by 120° & 240°, so you can do it in a similar way.
Re: Reactance Power Calculations
How can I delay voltage? Should I add new elements to circuit?
Re: Reactance Power Calculations
I would do it in software. Read what I wrote above.