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Re: Potential Transformer Questions???
Original poster: "Ed Phillips by way of Terry Fritz <teslalist-at-qwest-dot-net>" <evp-at-pacbell-dot-net>
Tesla list wrote:
>
> Original poster: "Mccauley, Daniel H by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
>
> So what would be your guess at the current limit (ballpark of course) of an
> average single MOT at 120VAC????
>
> I think I only have one MOT currently.
>
> Can I just measure the inductance of the MOT with the secondaries shorted
> and use this information to calculate
> the limiting current??? I don't really want to operate the transformer
> without knowing what my limit will be. Well, I guess
> I could step up slowly with a variac.
>
> Dan
That's a good test, long known to EE's as a "short-circuit test". I'm
not sure what an "LC Meter" would measure, but if you simply apply a
small AC voltage and measure the corresponding current you can calculate
a pretty good value of short-circuit impedance.
Ed