Re: [TCML] Disassebling a huge transformer

["" <dr.hankenstein@xxxxxxxxxxxxx>]

Hi,

What do you consider "huge"? Do you have name plate data, mfg. info?
Usually on smaller xfmrs (under 15000 kva at about 80000lbs or so) the
laminations are stacked three pieces to the left, and the three pieces to
the right. etc, etc. You need to remove the core support and, provided it's
an oil filled unit (over 1Mva), the wood wedges to loosen up the core, and
start removing one set of laminations after the next. Use a leather mallet
so you don't damage the laminations. If it's larger than 250kva you will
probably also need a friend to help....be careful as the edges are very
sharp. If three phase, chop the buss between adjacent coils in the clear.
Remember, the wedges between the core and winding seem to hold the core
together very tight. Once the laminations and wedges are removed, you could
use an engine hoist to remove the coils for rewind. 

Happy winding!  



> [Original Message]
> From: Chip Atkinson <chip@xxxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Date: 7/21/2008 8:20:15 AM
> Subject: Re: [TCML] Disassebling a huge transformer
>
> Hi Garry.
>
> I'm puzzled why you'd want to go through the trouble of disassembling the
> transformer.  What about just putting a resistor across the secondary of
> the ballast transformer and running the current through the primary? When
> you want a small amount of inductive ballasting use a smaller resistor.
>
> You could construct a resistor bank and put taps in it so that you could
> easily adjust the resistance and therefore ballasting.
>
> Chip
>
> On Mon, 21 Jul 2008, garry neeley wrote:
>
> > Het Guys I aquired a gigantic transformer for my pig ballast.  I want to
> > rewind it to make a reactor.  My question is Does anyone know of a good
way
> > to get the I seperated from the E.  The I section is bolted together
with
> > threaded rod.  At the top where the E and I meet the laminations are
> > interleaved together.  This transformer is big, mid section exceeds 25
> > square inches.  Weighs over 300 lbs.  Should I simply cut the I section
> > off?  Are there any good methods for this?
> > Bamacoiler
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
> > 
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla