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I need an isolation Variac, can this work?

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sabahan

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I need a isolation Variac,can this works

I need a isolated Variac but can't find it locally,I can only find normal variac that are not isolated from the main,can I couple two transformer of primary 230,secondary 115 together and the variac get the power from the couple transformer

Isolated Variac.jpg
 

Re: I need a isolation Variac,can this works

yes but why not just use an single isolating transformer instead of two transformers?
 

Re: I need a isolation Variac,can this works

Yes I know,I can't find a 230 to 230 transformer with large enough power for my need
 

Re: I need a isolation Variac,can this works

Expect higher load dependent voltage drop, but no other problems.
 

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