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Measuring peak power for rating plate

I would like to measure the peak power drawn by various pieces of equipment individually so that the figure can be shown on each equipment's rating plate.


I'm considering using the peak demand function on a MID power meter but, using 0.5s/0.2s CTs instead for better accuracy.  Is this approach acceptable?
  • Usually just rms real current is measured at (in this case) nominal voltage.


    I'm not really sure if anyone would be too worried about it being "true rms" either.