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: Wed, 30 Sep 1998 18:40:01 -0600
• Approved: terryf-at-verinet-dot-com

Hi Mark,
          Voltage stepup/down is based on turns ratio. Impedance 
stepup/down is based on turns ratio squared.

Malcolm

> Original Poster: Mark E Finnis <mefinnis-at-medicine.adelaide.edu.au> 
> 
> At 16:03 29/09/98 -0600, Reinhard wrote:
> 
> >Here are some values I will build my xformer with:
> >
> >Input: 240V-at-50Hz
> >Output: 15000V-at-500mA (7.5KVA)
> >Primary: 124 turns of AWG 13 (middle leg)
> >Secondary: 7792 turns of AWG 24 
> >(This is total, I would ct it, so I would need 3896 turns per outer leg)
> >Crosssectional area of the biggest leg: 2.87 inch^2
> 
> Confused through my lack of theory ........ AGAIN :-(
> 
> I seem to recall in the previous 'home-made transformer' thread, that
> voltage step-up/down was related to the ratio of (turns^2).  The above
> appears to be calculated on ratio turns.

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