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Re: Transformer (2500 volt)



Subject:  Re: Transformer (2500 volt)
  Date:   Wed, 14 May 1997 14:11:40 -0400 (EDT)
  From:   Esondrmn-at-aol-dot-com
    To:   tesla-at-pupman-dot-com


In a message dated 97-05-13 12:44:50 EDT, you write:

- snip - 

<< 
 My suggestion to add current limiting to the microwave transformers
 is based on two factors. First I have a batch of microwave 
 transformers (8 so far) that do not appear to have any shunts
 (Tom informs me that some microwave transformers have shunts that can 
 only be seen by removing the windings so this may be the case with 
 these or atleast some of the). My second reason for suggesting 
 current limiting the microwave transformers is because it will do no 
 harm to the transformers and IF they turn out not to be current 
 limited then this will protect them. As I told Tom in a private 
 e-mail last night I found MY first obviously shunted microwave 
 transformer. And he and I are comparing the findings on oil burner
 transforers as well. I will continue to suggest using current 
 limiting on microwave transformers and oil burner transformers
 untill I find that the ones I have that are not current limited are 
 unique (I tend to doubt this) or as I suspect we will find some are
 current limited and some are not. Then I would suggest measuring the 
 transformers and if they are current limited then you wont need to 
 current limit them otherwise they will need a series current limiter. 
 I feel it is better to suggest using a harmless current limiter than 
 not to suggest it and have a large group of people blameing me for 
 their burned out transformers. It is a case of untill we are 
 absolutely sure, it is better to be safe than sorry.
 
- snip -
  >>

If oil burner transformers or microwave oven transformers required
external
ballast, you would find a ballast transformer in the microwave oven or
in the
normal oil burner set up in a oil furnace - I have never seen either -
which
of course means, there are probably some out there some where.

Ed Sonderman