[HomeBrew] high voltage transformers

Tue, 07 Jan 2003 12:56:57 +1100

Am also interested in HV Transformer but we have 240V in OZ.

Read the article referenced below with interest and observed that the writer used 4 
MW Transformers off of 115v 2 phase - earth neutral!.

Have also seen recommendation to use 2MW transformers off of single phase 240v 
because of the insulation problems with transformer secondary. The primarys are in 
parallel and secondarys in series with centre tap earthed.

Can't understand why the writer used four transformers - was it just to get full wave  
bridge rectification, or to balance the load on 2 phases.

Eddie

Vk2BEH

On 3 Jan 2003 at 20:47, Phil T. wrote:

> ** HOMEBREW REFLECTOR - Please do NOT cross-post messages to multiple mailing lists on the "To:" or "CC:" line of the e-mail message. **
> 
> There is a copy of a QEX article on this very subject (using MW Oven 
> tansformers) on my website.  Please download it soon because I am going to 
> remove it and some other articles to save web space.
> 
> Read the article and also temper it's contents with Frank's posting.
> 
> http://www.vaxxine.com/phil/downloads.htm
> 
> Phil
> 
> At 03:24 PM 1/3/2003 +0000, you wrote:
> >** HOMEBREW REFLECTOR - Please do NOT cross-post messages to multiple 
> >mailing lists on the "To:" or "CC:" line of the e-mail message. **
> >
> >I have been considering using old microwave oven hv transformers for a 
> >4cx-250 Amp. Has anyone tried this?
> >
> >Dedicated to the art of "sratch building" from the junkbox,
> >Durwydd MacTara
> >
> >
> >
> >
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