RE: 75 kVA pig

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

Original poster: "Loudner, Godfrey by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>

All kinds of configurations are possible inside that transformer. Lets wait
until you read the plate on the transformer. If it becomes necessary, you
can get a hoist and pull the transformer from its tank to make reconnections
for single phase usage. I have a dry type three-phase transformer with core
measurements of 9"Lx9"Hx3.75"W. I cut all the connections between the
windings, removed the secondary windings, and left intact the primary
windings. I made three secondary windings for experimenting. I can mock up
your situation. Find out from the owner of the transformer if it contains
PCBs. There are too many legal and health issues regarding PCBs. The 75 kVA
unit is going to be a heavy dude weighing in at over 1000 lbs.

Godfrey Loudner

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Saturday, October 27, 2001 10:02 AM
> To:	tesla-at-pupman-dot-com
> Subject:	75 kVA pig
> 
> Original poster: "Mr Gregory Peters by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>
> 
> I've found out some more pig details. The unit is actually a 75kVA 3 
> phase pig. It has a 415 LV side and an 11000 HV side. Unfortunately, to 
> make it useful for TC use I would have to wire two primaries in 
> parallel and two secondaries in series. If I only use one set of 
> windings with my 240v socket, I will only get 5500 or so volts at the 
> secondary. I don't know much about 3 phase transformers, but I do know 
> that the ability to set up the transformer in the above configuration 
> is dependent on whether the unit has a star or delta configuration. I 
> don't know as of yet, which configuration the unit has. I will find out 
> when I go to see it on Monday. Can someone explain to me exactly how 
> this works and how I would go about setting up this system.
> 
> Thanks,
> 
> Greg Peters
> Department of Earth Sciences,
> University of Queensland, Australia
> Phone: 0402 841 677
> http://www.geocities-dot-com/gregjpeters
> 
> 
> 
>