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Re: pole pig current limiting
Original poster: "Edward Wingate by way of Terry Fritz <teslalist-at-qwest-dot-net>" <ewing7-at-rochester.rr-dot-com>
Tesla list wrote:
> Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
> The "Poor Man's Ballast" does work well for short runs with a potential
> transformer (3-3.5kW), however for higher power transformers such as pole
> you really need to get a good arc welder or a nice chunk of iron core to
> wind your own ballast.
> A Lincoln 220AC arc welder can be had used for less than $100.00 and provide
> up to at least 100A of adjustable current limiting. Ebay frequently has
> lots of these
> as well as your local welding dealer. New they are about $250.00
Lest someone be running around looking for a "Lincoln 220AC", which does
not exist, the two model
Lincoln arc welders that have worked well for me are:
AC-225C- moveable shunt current control, lighter duty and more compact.
AC-225-S-more heavy duty, tapped/switched current control, ~ twice the size
of the 225C physically.
Ed Wingate RATCB