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Re: Floating pigs
Greg, Jeff,
Do not attempt to bring the other end of the primary out of the tank for
the *floating* configuration. The single primary bushing allows for
less insulation in the tank. Making the other end of the primary float
will probably cause catastrophic failure. Arcing in the oil of a 10 kVA
transformer usually results in an explosion. Use the transformer as is,
and use the grounded end as Jeff suggested. Hope this helps.
Eric
Tesla List wrote:
>
> Original Poster: Jeff Larson <jflarson-at-starnetinc-dot-com>
>
> Can't you just use the grounded side for the grounded end of the coil
> and just not worry about that leg all together?
>
> > Original Poster: Greg Leyh <lod-at-pacbell-dot-net>
> >
> > > Oh, about floating HV outputs. Inside my pig - on the core I see two HV
> > > output leads. One of which connects to the top HV bushing, and the
> > > other is screwed to the xfmr core. Im my case that grounded HV lead
> > > could be easily brought out, ie, made floating. The rating plate
> > > contains a symbol indicating that one side of the HV output is tied to
> > > the case, just like it is...
> > >
> > > Don't know if there are any insulation ramifications caused by floating
> > > the output or not. I would guess not.
> > > -Bill
> >
> > The question then would be whether the gnded end of
> > the winding can actually support voltage, if floated.
> > Did it look that way?
> > --
> >
> > -GL
> Jeff Larson jflarson-at-starnetinc-dot-com
--
Have a good day!
Eric Davidson
edavidson-at-icva.gov