Re: [CAD_CAM_EDM_DRO] 2 transformers wired in parallel to double VA?

Thanks for responding Jon, Yes they are made by the same manufacturer. Hopefully the secondaries are color coded and I think they are. Not sure if thats a determining factor on phase to phase. I guess, the way to test would be, If it trips a breaker, it's backwards? Or there must be a better way to determine this?

Ron

Jon Elson <elson@...> wrote:
R Rogers wrote:

>Is this ok as long as they are the same voltage? These are each dual coil 55-55 volt at 800 VA. I'm wanting 55 volts at 1.6 KVA.
>
>

It is best if these are identical transformers. Also, you have to
make sure the windings are paralleled in phase. If you get it
wrong, it will blow breakers.

If the transformers are from different makers, they may not have exactly the
same turns ratio, and may have large circulating currents.

Jon



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