misterbill1972
Member
- Location
- Cali
I am in a industrial plant with a 4000A switchgear. It is hot to the touch and bussing is viberating. I checked the the temperature and it is 194 degrees on A phase, 221 on B and 196 on C. I put a power annalyzer and it shows 43% harmonics which I was told was very high, but I'm not to familiar with harmonics and I cannot find a NEC reference. Can anyone give some good explanation to help me out?
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