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Re: Want to move to all 208V for server racks


From: Joel Jaeggli <joelja () bogus com>
Date: Fri, 3 Dec 2010 20:10:38 -0800

Your battery stack isn't like 12v either, unless it's one battery.

Joel's widget number 2

On Dec 3, 2010, at 20:02, Jima <nanog () jima tk> wrote:

On 12/3/2010 9:25 PM, Matthew Petach wrote:
(OK, so it's not as practical when you have other customers to worry
about... but it might not be so crazy when you're looking at the
efficiency numbers for 100,000 small 1u power supplies vs a set
of much larger ones.)

Particularly if you're running your AC power through UPSes -- especially online ones (where there's a constant 
AC-DC-AC conversion happening).  Go to DC for the batteries, never come back.  It's a tempting notion.

    Jima



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