Re: Resistor vs transformer

Haven't thoroughly examined your analysis as I got a tight work
schedule here ... but I'll be back to you tomorrow morning.
In the meantime ... the secondary is left unconnected in the
application so flux induced there, currents flowing there have nothing
to do with the problem.
Then you are assuming wire radius and type is constant which isn't
necessarily true for different transformer types and that is going to
vary all the impedances, flux you have calculated.
You also assume A 240V has to have twice the windings of the 120V and
that depends on what the transformer is designed to do. It doesn't
always have to be like that, especially if you are considering
different transformer types.

Even across the same types you could use a 240V dual to whatever
voltage you want with a 120V to a lower voltage and you'd have the same
resistence of the primaries.

I see you mentioning regulation. It only makes sense to talk about that
if you have an output voltage . In this case our secondary is left
unconnected.


Regards

lemonjuice

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