[Milsurplus] Back to the drawing board...

[Rick Brashear]

Thanks Mike!  That's exactly the info I needed.  It appears this may be 
a very nice transformer for my needs.  I must admit, to my recollection, 
this is the first time I have dealt with one.

Thanks and 73,
Rick

Mike Hanz wrote:

> You have a ferroresonant transformer, Rick.  The capacitor is 
> essential to its operation.  See 
> http://www.allaboutcircuits.com/vol_2/chpt_9/6.html for a good 
> explanation of its action.
>
> - Mike
>
> Rick Brashear wrote:
>
>> Thanks again for all of the assistance on the high LV problem.  Now I 
>> have discovered I have maybe an even bigger problem.  My transformer 
>> seems to be drawing excessive current, about 19 AMPS, when totally 
>> disconnected from the rectifiers and filter capacitors and no other 
>> load on the secondary.   I know nothing about this transformer, there 
>> are few markings and none that identify the maker or model.  However, 
>> when I received it there was an AC capacitor (like a motor starting 
>> capacitor) attached to a set of lugs marked "CAP".  Unfortunately, 
>> that capacitor is shorted.  This is new territory for me or possibly 
>> my memory is again playing tricks on me.  Does anyone have any 
>> experience with a transformer like this?  The connections are:
>>
>> Primary
>> Secondary with center tap
>> CAP
>>
>> All are clearly marked.  I think it may be out of an old (AC/DC) arc 
>> welder or a very hefty battery charger.
>>
>> Any ideas?
>>
>> Rick
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>
>