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

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 20 Nov 2004 15:22:59 -0600
From: Bert Hickman <bert.hickman@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: 'Anti-parallel' ?? (fwd)

High Voltage list wrote:

Yeah.. except for winding sense. The original UK poster must have 
believed that transformer "sense" was analogous to diode or LED 
polarity where antiparallel would be more accurately used...  :^/

-- Bert --

> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Fri, 19 Nov 2004 16:00:48 -0700
> From: Gomez Addams <gomez@xxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: 'Anti-parallel' ?? (fwd)
> 
> Looks like a parallel connection if ever there was one.
> 
> On Nov 19, 2004, at 3:23 PM, High Voltage list wrote:
> 
> 
>>Original poster: <sroys@xxxxxxxxxxxxxxxxx>
>>
>>
>>
>>---------- Forwarded message ----------
>>Date: Fri, 19 Nov 2004 11:26:05 -0600
>>From: Bert Hickman <bert.hickman@xxxxxxxxxx>
>>To: High Voltage list <hvlist@xxxxxxxxxx>
>>Subject: Re: 'Anti-parallel' ?? (fwd)
>>
>>Hi Carl,
>>
>>An anti-parallel connection simply means that the primaries are
>>electrically connected in parallel, but the input leads of one MOT are
>>reversed in polarity (or "sense") versus the other pair so that the
>>secondary voltages can add. This connection can be used to double the
>>total output voltage from a pair of MOT's without introducing any
>>additional stress on the secondary insulation systems. The asterisks
>>illustrate the sense of the windings, and the polarity marks reflect
>>how the voltages will appear for a given half cycle of AC.
>>
>>                  IN
>>               |       |
>>           |---|-------o
>>           |   o-------|---|
>>           |   |       |   |
>>         * |+ -|       |+ -| *
>>           ooooo       ooooo
>>          -------     -------
>>          -------     -------
>>          ooooooo     ooooooo
>>        * |+   -|     |+   -| *
>>          |     ---o---     |
>>          |        |        |
>>          |      -----      |
>>          |     / / /       |
>>          |                 |
>>                 OUT
> 
> 
> 
> .
> 


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