Re: Self-built power transformer

• To: tesla-at-pupman-dot-com
• Subject: Re: Self-built power transformer
• From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Thu, 01 Oct 1998 23:46:24 -0600
• Approved: terryf-at-verinet-dot-com

Hi Doug,

> Original Poster: Doug Brunner <dabrunner-at-earthlink-dot-net> 
> 
> I *think* I've got that problem figured out. There will be 5 windings on
> top of
> each other, so the primary can take 30A. I've calculated the inductance for
> that primary at 101.7687875 mH (it's wound on commercial iron).That gives an
> inductive reactance of 38.37 ohms at 60Hz. Not exactly a short circuit.

OK. So you have an RMS magnetizing current of 120/38.37 Amps = 
3.12Amps  which is 4.42Amps peak. Can your core support the flux 
generated by 40 x 4.42 = 177 ampere-turns without going seriously non-
linear?

Malcolm
<snip>

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