Cascading Failures Could Crash the Global Internet

Thu Feb 6 21:47:26 UTC 2003

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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