Re: 'Anti-parallel' ?? (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 19 Nov 2004 13:28:44 EST
From: Esondrmn@xxxxxxx
To: hvlist@xxxxxxxxxx
Subject: Re: 'Anti-parallel' ?? (fwd)

Carl,

Good question.  I have wondered the same thing many times when I see the work 
anti-parallel.  When I went to school, devices were either in series or 
parallel.  I don't even think I heard that term until I joined this list.

Ed Sonderman

In a message dated 11/19/04 8:51:40 AM Pacific Standard Time, 
hvlist@xxxxxxxxxx writes:

> I threw this out as part of a larger issue a few days ago and I wanted
> to see if anyone would be willing to hazard a guess as to what the term
> 'anti-parallel' means?  The context is almost always in the wiring of 2
> transformer primaries in parallel in preparation for putting the
> secondaries in series.  
> 
> One very similar passage referred to wiring the primaries of 2 MOT's 'so
> that they oppose one another.'
> 
> The question is:
> 
> Is something different from standard parallel wiring being indicated by
> this term or is it just a local terminology variant (most referenced
> articles had apparent source in the UK)?
> 
> I really cannot see any difference whether the 'black' wire is taken to
> the 'righthand' side of both transformers or not.
> 
> 
> Comments please.
> 
> 
> Carl Litton
>