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Sorry for the crosspost ...

I have come across a way of producing an isolated mains supply by connecting 2 identical transformers "back-to-back"
i.e. the primaries connected together ...

It occurred to me that the following could provide me with a 480v supply or thereabouts to test the A/C option on a Fluke 8840A ...

There will be little or no current load (a few mA as a maximum).

Is this going to work ?? or will I release the magic smoke ???

Regards,
Dave