RE: Transformer for Sale? POTENTIAL TRANSFORMER

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>


No question is stupid.  You may get stupid answers (like I sometimes do),
but all questions are valid.
Basically, simply put its a heating issue.  Almost all transformers can be
pushed beyond their rated power rating.
However, reliability starts going down drastically beyond that point.
Insulation, wiring, and other materials will
start breaking down at higher operating temperatures than what is rated for
a particular transformer which lead to
failure.  Fortunately, both these potential transformers and pole
transformers are very rugged devices which can be pushed at least 200%
(depending on transformer) of their rating, FOR SHORT PERIODS OF TIME!
Short periods of time is key phrase here.

Will they draw more than their ratings naturally.  Yes, unlike NSTs, these
type of transformers are not current limited.
You attach a load to the output of the transformer, the input to the
transformer will try to suck the necessary power to run that load at its
rated voltage!

The Captain


 > Sorry about the stupid question, but I'm just curious about
 > one thing. How
 > is it that you can push these things over their ratings? Is
 > it simply that
 > they aren't current limited and you can set their ballast to
 > run at over
 > their ratings? Will they draw more than their ratings
 > naturally? Sorry, I
 > guess I'm still used to living in "NST land" =D
 >
 > Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Mccauley, Daniel H by way of Terry Fritz "
 >
 > Look no further. Forget those wimpy NSTs. If you want a 15kv/90 or
 > 15kv/120 you've come to the right place.
 > How about a 14.4kV -at- 240mA ! ! ! ! Now thats some serious
 > power in a small
 > package.
 >
 > You want a potential transformer for maximum effect on the
 > small scale.
 > GE has these wonderful potential transformers rated at
 > 1.5kVA, 14.4kV pri,
 > 120V sec which can be pushed to
 > 3.5kW no problem for long periods of time. These transformers
 > are also much
 > easier to use than pole transformers
 > as well as they are dry and are relatively light compared to pole
 > transformers. They also don't need a large current
 > limiting ballast such as an arc welder etc like their big pole brother
 > counterparts. A simple 500ft spool of 12 AWG wire from Home
 > Depot makes! a
 > wonderful ballast for these things. Terry Blake, myself, and
 > others have
 > used the poor man's ballast with huge success!
 >
 > Here is picture of my potential transformer coil. This coil
 > is running ONLY
 > at 2.0kW also as the cord length from the basement of house
 > to backyard and
 > through extension cord acted like a ballast itself and really
 > restricted the
 > power.
 >
 > http://www.spacecatlighting-dot-com/images/ctc3_arcs01.jpg
 >
 > Whats that you say? "Where can I get one?"
 >
 > Easy. Ebay has one right now. And better yet, the guy that is
 > selling them
 > on ebay has a boatload of them. If you email him directly
 > (click on his
 > name on ebay listing), he can sell you one outright. Just tell him I
 > referred you and that you are from the Tesla Group and he'll
 > give you a good
 > price.
 >
 > Here is the ebay listing:
 >
 > http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=2524142298&;
category=4665



The Captain