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PM 820 Harmonics
Metering & Power Quality
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Good afternoon all.
Upon looking at some values from one of our Portable PM820's that just came back from a client's site, I noticed some erroneous current THD readings:
I'm aware that anything below 1 ampere will have a multiplying affect on harmonics, but this is not the case here. Also, please note how the values (current) before and after the boxed value are very similar, and yet the % of THD is almost 40% different. Any explanations on how this could be above 100% would be fantastic.
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