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RE: A new mini-coil competition winner!
Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>
Hi Gerry:
The rules allow only a 4/20 NST to compete in "Category 1". A 4/50 NST
could be entered in Category 2 if the product of Vsec * Isc does not
exceed 200VA.
I wasn't sure just how far I could safely go in removing shunts. I was
afraid the NST may get too hot and fail during the required 5-minute
preconditioning run (which is to ensure that an unsafe operating
condition isn't used), but I didn't try removing more than I did. That
end of the spectrum remains unexplored...
Regards, Gary Lau
MA, USA
> Original poster: "Gerry Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
>
> Hi Gary,
>
> There's nothing wrong with the rules you setup. The contest is just
> not what the impression I got when the first post was made. I still
> dont know why contestants would not go for 50ma since that seems to
> be allowed. Do you allow 4K 50ma transformers unmodified?? BTW,
> congradulations to Karl for the current record. I only could get 6
> inches from a 4.5K 20ma plate transformer
>
> Gerry R.
>
>
> >Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>
> >
> >Just as anyone participating in a foot race without wearing sneakers
> >would be at a disadvantage. The point of the competition was to see
how
> >well one may do if we all start with the same PSU. Granted, if
everyone
> >used an unmodified 4/20, we'd have a better idea of what other
factors
> >resulted in superior performance. But I didn't want to require
> >contestants to hobble the performance of their coils by not allowing
> >shunt removal. More entries were likely if folks were satisfied with
> >the resulting performance. And if the resulting experience improves
our
> >understanding of how much de-shunting is possible, we'll have better
> >coils for that.
> >
> >Regards, Gary Lau
> >MA, USA
>
>
>