'Anti-parallel' ?? (fwd)

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---------- Forwarded message ----------
Date: Thu, 18 Nov 2004 10:48:12 -0600
From: Carl Litton <Carl_Litton@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: 'Anti-parallel' ??




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