series pigs

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

Original poster: "Mr Gregory Peters by way of Terry Fritz <twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>

Scot,

Did you ground one of the HV terminals on each pig as I have mentioned, 
or did you just hook them in series? Does this "centre-tap" arrangement 
cause any insulation stress? My understanding of the centre-tap 
arrangement is that each pig does not experience any more voltage than 
it was designed for. Is this correct? I guess this may not be possible 
with the US 240v system, as both lines are hot (whereas the aussie 
system uses an active and a neutral). 

Also, something else I would like to do is place the 11kV secondaries 
in series and also the 240v primaries. I would then power the pigs with 
the 415v we have between phases over here. This will give me a nice 
~19kV supply. However, I can't use the centre-tap arrangement with this 
as both terminals will be hot, right?

This also lets me draw almost twice the energy with the same current 
load. Australia has very strict laws regarding unequal phase loadings. 
This will let me get alot more power before I break any laws or dim the 
entire neighbourhood.

Cheers,  


Greg Peters
Department of Earth Sciences,
University of Queensland, Australia
Phone: 0402 841 677
http://www.geocities-dot-com/gregjpeters