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Re: Cascading Failures Could Crash the Global Internet
From: "Dominic J. Eidson" <sauron () the-infinite org>
Date: Thu, 6 Feb 2003 15:47:26 -0600 (CST)


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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http://www.the-infinite.org/              http://www.the-infinite.org/~dominic/


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