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Re: Xfrmr shunt theory

Original poster: "Terry Fritz" <twftesla-at-uswest-dot-net>

Hi Peter,

Shunts are usually made of many metal plates and you can easily take a few
plates out.  So #1 is by far the best.  Air gaps have a very extreme effect
and it would be very hard to adjust NSTs with air gaps.  Definitely #1 is
best.  Some current limited transformers meant for very low current do use
air gaps but those are very carefully made.  A little filing in such a case
may do the trick.  However, almost all NSTs will use plates and not air gaps.



At 10:45 AM 5/4/2001 -0700, you wrote:
>I've gotten zero response in a week, I'll try asking one more time...
>Xfrmr Folks,
>            seems to me there are two ways to decrease the shunt-age in an
>NST.  1) remove something so that the shunts have a smaller cross section but
>still bridge completely across, 2) remove something so that there is an air-
>gap to the shunts but they still have their original cross section.
>Which is prefered and why.
>-Peter Lawrence.
>(another Q, has anyone ever tryed to "increase" the shuntage in a MOT to
>lower the current and make it usable with a static gap?)