[133104] in North American Network Operators' Group
Re: Want to move to all 208V for server racks
daemon@ATHENA.MIT.EDU (Ingo Flaschberger)
Sat Dec 4 17:27:05 2010
Date: Sat, 4 Dec 2010 23:26:46 +0100 (CET)
From: Ingo Flaschberger <if@xip.at>
To: Michael Loftis <mloftis@wgops.com>
In-Reply-To: <AANLkTiknvyMjO6gjg8eFmjtb6int5bSqEQRF1gHTv1h2@mail.gmail.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> There's also a telco oriented 48V inverter rack system thats escaping
> my mind at the moment. It can be setup with A/B 48V strings, and you
> plug in inverter modules up to IIRC around 8kW. Not parallel capable
> between racks AFAIK.
48V (and some more when batteries are full) are slightly below the limit
of non harmfull voltage.
Thus you have a voltage with less power loss at short transports and a
secure voltage. (creating a short is still not a great idea).
Kind regards,
Ingo Flaschberger
