Harmonics interpretation electric board

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KundaliniZero

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Hi, I saw some harmonics in a electric board so I would like to know what do you think.

It my first time seeing this value 30% THD is a lot for me, but I have no enough experience to know if this is usual.

Theory is different than experience.
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What is the load as a percentage of the meter full scale? At load relative load, high THD is not a big deal.

For example, if it was a 2000A meter and the load was 20A, a 30% THD is no big deal.

If the load is relatively high, what is the load type and what harmonic makes up the biggest offender? lots of triplen harmonic?
 
KundaliniZero said:
Hi, I saw some harmonics in a electric board so I would like to know what do you think.

It my first time seeing this value 30% THD is a lot for me, but I have no enough experience to know if this is usual.
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Assuming the loads are single phase to neutral, 30% wouldn't altogether surprise me. Can you check the neutral?
 
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