Re: Pole pig control

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

Original poster: "Jason Petrou by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jasonp-at-btinternet-dot-com>

Hi there
A varia will give adequate control over current, but cut throught the core
of the variable ballast completely before you connect it up to stop it from
saturating. Make sure you dont get any swarf from the cutting in the
winding. If I get you right you have a stak of 3 10A ones to give 30A. You
could pull 10KVA through one 10A variac, but Id keep the runs under a
minute, or get some more bigger variacs.

 Good luck
Jason
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, June 11, 2001 2:50 AM
Subject: Pole pig control


> Original poster: "Fred Bultman by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<royaloakmin-at-home-dot-com>
>
> Hi, I have just purchased a 10 kva pig, a GE 3 stack 30 amp variac, and a
100
> amp contactor. I am planning on separating the stack and using two units
for
> voltage control, and one as a variable ballast. Would one 30 amp variac
give
> adequate control over a range of a range of about 3 to 15kva? The variacs
are
> very heavy, so I don't they will have any problems with the current. I am
still
> looking for some HEAVY line filters, big meters, a balancing choke, and a
large
> cabinet if anyone has one. Does anyone have any advice on hooking this up?
> Thanks, Jim Bultman
> P.S. If anyone wants huge variacs cheap contact CTR surplus in Ohio at
> <http://www.ctrsurplus-dot-com/>http://www.ctrsurplus-dot-com/.
>
>
>
>