I suspect that if that "stuff" is on the power line, then it is
going into your load, so measure it and report it.

Take many samples of volts and amps.
For each sample, calculate rms volts, rms amps, and rms watts.
After you have enough samples, multiply rms volts times rms amps.
It (rms VA) will be larger then rms watts.  That's your power
factor, which I think (anyone?) is just (rms watts)/(rms VA)

Barry




At 02:40 PM 5/7/02 -0300, you wrote:
>Hello piclist,
>
>  Anyone can suggest a method to measure power factor in AC lines.
>  Specially considering noisy enviroments and poli-harmonics
>  conditions.
>            Thanks in advance.
>
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