Re: Calculating the VA rating of transformers?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Andrew Mawson" <andrew@m...>
wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, R Rogers <rogersmach@y...>
> wrote:
> >
> >
> > The transformer I have in my control is the one that came out of
> the old bandit control. I have no idea of it's Va rating. It puts

out

> 46 volts AC. Its the old stacked plate type, not a toroidal. The
> actual coil measures 5" dia X 4" tall. Any idea what the Va rating
> would be? I'm thinking about 800 Va. Judging by the size and

ratings

> of presently available units.
> >
> >
> >
> > Ron
> >
> >
> >
> > [Non-text portions of this message have been removed]
>
> Ron,
>
> The power handling depends on the core area (bigger is higher),
> frequency (higher is higher) and magnetic properties of the core
> material. There is some useful information here:
>
> http://www.epanorama.net/documents/components/transformers.html
>
> Regards,
>
> AWEM

Nice,

Jan R had offered to calculate the approximate VA, so I would wait
for his comments.


He wrote a paper on how to roll your own transformer so probably
knows a little more then the rest of us and bunches more than I do on
the subject.

I only requested the physical data to help get it to Jan in a timely
manner. hate to have him ask tonight and get a response tomarow.
Sometime the net is fast, other times a day seems like forever.

Me, I remember federal express being THE fast way to get documents.
Then of course, the fax machine came out.... wow, times have changed.

Dave