Re: Enough pork in this pig??? TAP CHANGERS

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

Original poster: "Jack King by way of Terry Fritz <twftesla-at-qwest-dot-net>" <speakernut-at-yahoo-dot-com>



> Hi Steve,
> 
> Only Gregg can say if there is a tap switch, but
> even then, typically the
> change in voltage is
> small and I suspect even smaller on a 7200v pig as
> compared to the normal
> higher votlage pigs..

There are two types of tap changers: One typically
deals with compensation for dropping voltages out on
distant rural distro lines, so yes, you are correct,
these internal type tap changers adjust voltage
negligigibly...at least for our purposes. The OTHER
type of tap changer is more major: Many transformer
mfrs have adopted pseudo-universal models, and employ
an external tap switch. 7200-14000 models are very
common, especially with utilities that use different
distro voltages on there networks. I see these about
every day.

Cheers,

Jack King


> 
> Bart
> 
> Tesla list wrote:
> 
> > Original poster: "Steve Mach by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> <gossamer-at-cox-dot-net>
> >
> > Bart,Godfrey, This may seem elementary,but has
> anyone taken a CLOSE
> > look at the data plate on x-fmr in question.Most
> of these have primarys that
> > can be tapped for different voltages depending on
> how they're hooked up. ie
> > (7200v Y / 12.4Kv Delta).
> > Joules Rules   SM
> 
> 
>