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From: lauf-s <lauf-s@xxxxxxxxxxx>
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Date: Fri, 15 Aug 2003 09:55:13 -0400
On the local news (here in Philadelphia) last night, it was
reported from the (I don't know the official name) Power
Interconnect at Valley Forge, that yesterday, at 4:11 PM it
was immediately noticed that a huge amount of power was
being drawn from within the larger network towards the
blackout area(s). The controllers at Valley Forge realized
what was going on, and thus quickly 'disconnected' their
facility from the area of the overall network that was then
in the process of blacking out. If this 'disconnect' had not
happened, the Philadelphia region would have also blacked
out.
From this report, I'm assuming the 'disconnect' was done
'manually' rather than via automation, ie, via some software
programmed to prevent 'cascading'.