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#49452 - 03/07/05 01:07 PM V.F.D. Isolation Transformers& Line Reactors
Yoopersup Offline
Member

Registered: 03/04/03
Posts: 826
Loc: Michigan
Anyone have much experience with either of theses, With V.F.D.s

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#49453 - 03/07/05 02:48 PM Re: V.F.D. Isolation Transformers& Line Reactors
Ron Offline
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Registered: 03/13/02
Posts: 577
Loc: White Plains, NY
Generally used to reduce upstream harmonics.
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#49454 - 03/07/05 05:15 PM Re: V.F.D. Isolation Transformers& Line Reactors
Redsy Offline
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Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA

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#49455 - 03/08/05 06:30 AM Re: V.F.D. Isolation Transformers& Line Reactors
JBD Offline
Member

Registered: 07/12/01
Posts: 599
Loc: WI, USA
Good information at the manufacturer's sites TCI and MTE .

Except for public school jobs where the engineers don't know any better, I almost never see them on the front end of current generation VFDs. I don't know of a single industry in this area that routinely installs them as a preventative measure without doing a power quality study first.

Load reactors are still common, though.

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