Re: [TCML] live pigs on the ground

["Brian Foley" <ka1bbg@xxxxxxxxxxx>]

Hi, Ok, your info is good. i looked and thot it looked like ungrounded delta
or as you say 3 wire......25 years ago we used to have 480/240 delta no
ground, 230/460 3 phase Y and then 460/600 Y with ground all in the same
building!
it is all converted to Y grounded now..cul brian f.


      www.genapro.com
----- Original Message -----
From: "Dr.Hankenstein" <dr.hankenstein@xxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Thursday, January 03, 2008 12:44 AM
Subject: Re: [TCML] live pigs on the ground


> That's an old 3phase 480Volt 3-wire Delta service. Very rare these days as
> most services are 4-wire wye 277/480 volts with the neutral grounded for
> safety. I have seen services like this before....very scary indeed. Also;
> 240/480 volt secondaries are becoming obsolete for services because it is
> much cheaper for a utility to buy only 120/240 or 277 volt xfmrs. A
240/480
> volt xfmr cannot be used on a 277/480 wye service; but...a 277 volt xfmr
> can provide both 277/480 wye or straight 480 volt, 3 phase delta service
if
> required, so you only need to buy two kinds of xfmrs:
>
> 120/240 volts can provide the following depending on connection: 120/240
> volts for lights and appliances, 120/208 volt wye or 120/240 volt 4 wire
> delta (used for three phase and lights)
>
> 277 volts can provide the following depending on connection: 277/480 volt
> wye or 480 volt delta.
>
> 240/480 volt transformers are generally connected only 480 volt delta.
They
> can be configured to provide other voltages not generally used in this
> country.
>
> Hope this provides some understanding.
>
> Spark on!
> Woo
>
> dr.hankenstein@xxxxxxxxxxxxx
> "We put the fire in the wire."
>
>
> > [Original Message]
> > From: David Rieben <drieben@xxxxxxxxxxx>
> > To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> > Date: 1/2/2008 9:39:43 PM
> > Subject: Re: [TCML] live pigs on the ground
> >
> > Marko,
> >
> > Yes, I've seen 3-phase service provided by live pigs
> > in a setup like this before, although I think the ones
> > that I've seen were generally older looking and I don't
> > think that they were sitting on the bare ground but in-
> > stead set on a concrete pad or a steel frame work
> > support.
> >
> > David Rieben
> >
> > ----- Original Message -----
> > From: "mark olson" <kc5gym@xxxxxxx>
> > To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> > Sent: Wednesday, January 02, 2008 9:08 PM
> > Subject: [TCML] live pigs on the ground
> >
> >
> > > Hello all,
> > >
> > > I found these pigs in service at a building where I was doing chiller
> > > repairs.
> > > Has anyone ever seen anything like this before?  It is a first for me.
> > >
> > >
> > > http://members.cox.net/kc5gym
> > >
> > >
> > >
> > > Marko
> > >
> > > _______________________________________________
> > > Tesla mailing list
> > > Tesla@xxxxxxxxxxxxxx
> > > http://www.pupman.com/mailman/listinfo/tesla
> > >
> >
> >
> > _______________________________________________
> > Tesla mailing list
> > Tesla@xxxxxxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
>
>
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