On Wed, 16 Mar 2005, Phil Howard wrote:

> On Wed, Mar 16, 2005 at 07:23:24AM -0500, shogunx wrote:
>
> | On Wed, 16 Mar 2005, Phil Howard wrote:
> |
> | > | That part I have.  What I do not have is 3-phase power to run it.
> | >
> | > What voltage and amperage does it need?
> |
> | 3-phase 440V most likely about 20-30 amps.
>
> You'll need at least 25 kVA.  That's as much power as a small house.  Then
> add air conditioning.  Not sure whether upgrading electric service or buying
> a generator would cost more.  Maybe renting one long enough to see if it
> will power up could be done.  What are your goals for it?
>
> Is it literally 440 volts, or is that just a figure of speech for what is
> officially 480 volts (if you are in the US)?

Well, according to ohms law, it should work at 440, though with a higher
current draw.  You are correct.  3-phase each phase 120 degrees out of
phase from the others at 120V per phase yields 3 discrete 240V circuits
(actually about 208V after phase shift, but for all practical purposes its
the same thing, and depends on whether you use a wye or delta
configuration in your transformer).  So figure of speech it is.  In an
electic company FUD kind of way.

<tangent>
Also, is there anyone on
this list that operates a s/390 / z-series machine (preferably running
linux) in a bank?  If so, please contact me off list with information on
how to open an account.  I am having a problem with my current bank,
Netbank, and after a bit of research, have found the reason.  They operate
m$ servers.  Go figure.

Scott


>
> --
> -----------------------------------------------------------------------------
> | Phil Howard KA9WGN       | http://linuxhomepage.com/      http://ham.org/ |
> | (first name) at ipal.net | http://phil.ipal.org/   http://ka9wgn.ham.org/ |
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