[Amps] Note on paralelling transformers

[Dean Craft]

-----Original Message-----
From: Will Matney <craxd1 at ezwv.com>
To: amps at contesting.com <amps at contesting.com>
Date: Saturday, May 22, 2004 1:57 AM
Subject: [Amps] Note on paralelling transformers
>
>>snip<<
>

>If the
>transformers are connected "out of phase" they will buck each other.
>When this happens, you would get little or no output voltage and they
>would act like they were shorted. You will know when this happens
>believe me. You'll get a BIG hum and the fuse will open. Hopefully it
>wont damage the windings too!
>
>>snip<<
>
>Will Matney
>US Amp
>
>
Determine the correct phase wiring by applying the output of a 6 or 12 volt
filament transformer to the input of the parallel transformer combination.
The expected output voltage will be the ratio of 6/12 volts input to 120/240
volts input if the phasing is correct (or near zero if wired incorrectly) in
the primary and secondary windings of the parallel connected transformer
combination.  Takes longer to say it than it does to do it!  :)

Dean  -  W4IHK