Reply by TopamaxSurvivor

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Posted on Old three phase motors and Variable Frequency Drives (VFD)

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18244 posts in 3639 days

#1 posted 11-21-2011 06:17 PM

That is wild!! :-)) I’m not sure, but I would suppose it has something to do with the high swiching ferquency of the drive that is se the ground fault wired delta. Any reason you can’t just wire it wye and forget it?

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

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