Hello all.
Question for the experts.
How does using a Variac to control the output of a HV transformer affect
things like efficiency?
I think it would be reasonable to think that a transformer operated at
less than rated input voltage would be less efficient than one run at
full primary voltage. I mean, it cost 'something' just to make a
transformer act like a transformer.
I ask because I have a perfectly fine 'pole pig' transformer rated at 5
KVA. 7200 AC volts on the output (reversed) is a bit much for my needs,
so was wondering what the trade-off would be if it were run at
considerably less than 220 input.
I can see this is a better xformer for a 4cx10000, than anything I would
be using, but I have what I have.
73 de Steve, NR4M
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