transformer power sizing( was Re: More transformer drivel

i guys,

I think I am missing something here.

supposing
power = core area ^2
http://home.eunet.cz/rysanek/sup_en.html

power in watts
core area is the sq cm profile of the center of the transformer

my ship anchor sized transformer has a core size 4.1" x 4.1" that's a
108 sq cm.

that's 11,664 watts. @ 110vac that's 106 amps ?

just guessing here, but that is a tad large for four 2.5 amp steppers.

Transformer will eat watts just to magnetize the coil, plus the watts
used by the load. Assuming a 20% efficiency, there is a larger waste
of power than I use?

Help me out here guys, am I just missing this transformer sizing
altogether ?

Dave

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Chris L <datac@l...> wrote:
> With everyone out chasing really large capacitors for their Power
> supplys, How is it that the MicroK 36volt units have really small
caps ??
>
> What would they be missing by not having large caps, or how better
would
> things operate with large caps ??
>
> Here is a link to the PWR36
units:http://www.microkinetics.com/pwr36.htm
>
> Just curious as I use a Driverack with three of these in it now. I
am
> going to replace them on one machine, with the new Setup I'm going
to
> make out of the toroids I've been testing.
>
> I Sure look forward to the differences between a 36v system and
the
> Projected 62 volts Bob Indicated I'm going to have.
>
> Anyone ever up their voltage like this ? Care to comment on how
> "different" the machine ran ??
>
> Thanks,
> Chris L