[55671] in North American Network Operators' Group
Re: Cascading Failures Could Crash the Global Internet
daemon@ATHENA.MIT.EDU (Dominic J. Eidson)
Thu Feb 6 16:49:07 2003
Date: Thu, 6 Feb 2003 15:47:26 -0600 (CST)
From: "Dominic J. Eidson" <sauron@the-infinite.org>
To: <nanog@merit.edu>
In-Reply-To: <3E42CEF5.9080404@aol.net>
Errors-To: owner-nanog-outgoing@merit.edu
On Thu, 6 Feb 2003, N. Richard Solis wrote:
> I don't know of too many electrical distribution networks that use DC
> interconnection to limit AC failures from propogating.
There are 3 power grids in the continental US:
Western, Eastern, and Texas.
(http://www.eia.doe.gov/cneaf/electricity/page/fact_sheets/transmission.html)
These are interconnected using high voltage DC ties, for reasons including
(but not limited to) what Sean said.
- d.
--
Dominic J. Eidson
"Baruk Khazad! Khazad ai-menu!" - Gimli
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