Re: 3 Phase - 3 Phases

On 2005-09-20, Randy Gross <aaawelder@xxxxxxxxx> wrote:
> In lieu of a 3 phase mains feed, can 3 independent single phase feeds
> be applied to a 3 phase transformer?

no

> In this scenerio, there would be no power overlap as in conventional 3
> phase. All three phases would rise and fall, in unison, in phase with
> each other. The unit is a rated 575 volt 3 phase welder with plasma
> cutter.

I expect that device was designed to use 3 phase power

> My question is, can the single phase feeds be applied in this manner
> without dire effect.

I don't think you're lkikely to have it burst into flames etc,
depending on the construction of the transformer it may have no effect at all.
you're unlikely to get any useful output from the secondaries


Bye.
Jasen
.

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