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Subject: Re: variable frequency drive

Date: 05/05/02 at 11:46 PM
Posted by: Jeff Miller
E-mail: jeff@apersay.com
Message Posted:

In Reply to: Re: variable frequency drive posted by Rick on 03/25/02 at 10:20 PM:

I know some VFD's that are designed for 3 phase input can be used with single phase input with some (~%15-25?) derating on output power. Many late model Baldors have this feature. Whether this can be done or hacked with all or most other brands of VFD, I don't know: I've operated under the assumption they can't, so I look for Baldors for this application. This information should be available from most manufacturers on a model by model basis, and should be addressed in the operations manual. I find it unlikely that any 3 phase VFD's react to sinlge phase input by providing single-phase output. The Baldors don't: they provide 3 phase output regardless of input. Baldor provides PDF's of the owner's manual of their current VFDs online, with luck you'll find info for your particular mfg/model online too.


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