VFDs, Harmonics, and long, long runs
VFDs, Harmonics, and long, long runs
(OP)
We are using some 12 and some 18 pulse drives on 4160v motors. The motors are fairly close to the VFDs. The point on common coupling (PCC) is locate approximately 2 miles away from the VFDs.
Can harmonics flowing back to the PCC 2 miles away have an impact on the distribution line?
Thanks.
b
Can harmonics flowing back to the PCC 2 miles away have an impact on the distribution line?
Thanks.
b






RE: VFDs, Harmonics, and long, long runs
But it unlikely that you will have issues with a 12-pulse drive and extremely unlikely you will issues with an 18-pulse drive.
A predicted harmonic level can be calculated. And harmonics can be measured at the PCC.
David Castor
www.cvoes.com
RE: VFDs, Harmonics, and long, long runs
I was thinking there would be a concern with capacitance with such a long run and the harmonics.
RE: VFDs, Harmonics, and long, long runs
If the motor cables were long, that would be another thing. But they are not.
Gunnar Englund
www.gke.org
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