Re: The 12 pulser.

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

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

What about http://caveromiranda.50megs-dot-com/3.3---1.pdf
A paper from a power engineering professor: http://home.c2i-dot-net/owand/large.doc

A write up from ABB:
http://www.abb-dot-com/global/abbzh/abbzh251.nsf!OpenDatabase&db=/GLOBAL/ABBZH/A
BBZH262.nsf&v=24D86&e=us&m=9F2&c=CA68129FB4A498FFC125689000610A1C

Tesla list wrote:
> 
> Original poster: "Finn Hammer by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<f-h-at-c.dk>
> 
> Thanks to Jim, for reminding me of the North Report, which reveals, that
> 12 pulsers are the way to go, when the purpose is to get DC in
> abundance.
> 
> Connecting the coils in a Delta and a Y would risk to wind up with 2
> sets of coils with different coupling factors, and associated difference
> in regulation, which would be a disaster.
> 
> However, the winding arrangement of choice is the extended Delta
> connection. Although the North report does explicitly not tell, which
> relation rules, btwn. the "in delta" winding no., and the external
> winding no.so that they each get a 15 degrees shift..
> I could buy a couple of books, and learn there, but someone on the list
> is likelt able to answer.
> 
> I have an idea, that the relationship is 5.08-1, but that is just a
> chance guess.
> >From here:
> 
> http://216.239.51.100/search?q=cache:EDiyqCrme24C:wwwinfo.cern.ch/ce/ae/Sabe
> r/Modelling/trans_1b.ps+extended+delta+transformer&hl=en&ie=UTF-8
> 
> Does anybody know the relationship btwn. the outside extended winding
> no. and the "In Delta" winding no. of a 3 phase transformer, with 6
> secondary windings, each set of 3 wound as exrtended delta configuration
> to produce + - 15 degrees of phase shift btwn winding sets?
> 
> Cheers, Finn Hammer