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Re: winding my own transformer

I am not sure about how many amps each wire thickness can take, but I can
tell u uwill probably need #6 wire at the minumum.  Great idea.  For
other coilers out there who wish to duplicate that idea, I would suggest
rewinding a microwave transformer.
Bryan Steinbach

On Sun, 19 Sep 1999 09:21:35 -0600 Tesla List <tesla-at-pupman-dot-com> writes:
> Original Poster: BunnyKiller <bigfoo39-at-idt-dot-net> 
> 
> 
> 
> Hi all,
> 
> I came across 2 transformers that were used in a 240 V system 
> designed
> to charge a 24V battery bank. The core forms are 3.5 " thick X 7.5" 
> long
> X 7" wide.  I removed the end caps ( ground out the weld ) and now 
> have
> 2 " E " shaped core assys. If they are placed end to end, the 
> useable (
> windable) center leg is 10" long.
> 
> 
> What I would like to do is rewind this core assy to use as a current
> limiter for my pig. Im  thinking that i can run the "primary " side 
> of
> this rewound core in series with the pig and use the secondary side 
> as a
> means to control the current draw on the primary. By using  
> parralell
> resistive elements on the secondary side I can "draw" current from 
> the
> primary thus feeding more current to the pig.  The plans are to wind
> this core as a 1:1 isolation type transformer.   a #10 wire at about 
> 150
> - 180 turns each side. I would like to have this core handle 60 amps 
> at
> 240 volts ( over engineering it ) but plan to do most of my running 
> at
> 40 amps -at- 240 V .
> 
> 
> the main question i have is....   do you think a #10 wire is useable 
> in
> this situation ( to be used as the new wire ) or should i try to 
> locate
> a # 8 or 6 wire ??
> 
> I have tried to locate some type of chart that lists the amperage 
> rating
> for different wire sizes but to no avail.
> 
> 
> If any of you have input on this idea / design please feel free to
> comment.
> 
> 
> Scot D
> 
> 
> 

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