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Old 09-22-10, 01:31 PM   #34
SteamWake
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Join Date: Mar 2005
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You want to see harmonics take a look at variable frequency drives...

Ive seen them 'melt' neutrals.

The newer ones are alot better but those old SCR chopping VFD's were a nightmare.

Another big contributer to harmonics are PC's yup good old computers. Get enough of them on one phase and you will see why they design systems with 200% neutrals.
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