3 Phase OPEN DELTA and VFD's

[g-and-h_electric]

The plan was to get a NEW drive with single phase in, 3 phase out, sized for the motor. Again I am curious if this would fix things. As of right now the building management, and ComEd are working on things.... So I am keeping my ears open, and mouth shut... Just trying to find any info in case I have to fix this myself......


Howard

 

[Jraef]

Yes, it should work fine, so long as it is a drive designed for 1 phase in and 3HP.

We are assuming here that the line source is not intermittently losing a phase or it is suffering a severe voltage drop on one phase. It seems that you have ruled that out, but it's worth mentioning.