Re: [CAD_CAM_EDM_DRO] Home shop power for a big machine

I think its typical.

You have 200 A x220 = 44 kW incoming capacity ?
Even at 200 x 110 it´s 22 kW - a lot.

I used about 30 kW continuously for my computers in my past business. I
built and owned a telco.
Never a problem (Well - we had to upgrade the 3-phase 380 V capacity 3
times in 3 years to keep up with demand ..).
I tried once, for kicks, to turn on a test bank of 150 routers with one
switch.
Dropped the fuse for the whole building, not just my floor. ;( DUH

With 3-phase stuff, you normally use a very low % of your capacity,
maybe 5-10% of peak.
I used to have continuous drain on the routers and servers .. my
electric bill was 5k$ / month.
(I produced 8% of all Spanish emails, around 2002, for example).
I was cooling about 250 servers and routers to around 30 degrees ...
with 10 kW airco on 24x7 and dual incoming electric feeds, like hospitals.
Never needed heating, even in winter ;)

shawn c wrote:

>
>
> I have a cnc lathe with a 15hp spindle in our shop. The shop has a
> 200amp panel and I'm running a home made 30hp phase converter for our
> 3ph needs. We've never had a problem. Even with the compressor
> running, lights, computer, radio, and maybe a welder or plasma cutter.
> Seems to work fine here. I've never put pencil to paper to see what
> max draw is on all these items during startup to (maybe I should), but
> I never had any problems or noticed the lights diming. Maybe we've
> just been lucky??
> Shawn
>