According to preliminary reports the following happened. The 400kV line from
France to CERN went down. This caused --as it should be-- the switchover to the
130kV Swiss line within 30". But then the Swiss line went down. The critical
UPS (220V) stayed up and equipment powered by it was not affected. The cut
brought down a unit of a 48V-system which affected some equipment.
Just for information, the computer-centre power substation is for 6 MW of
power. Two high-voltage lines come directly into CERN (400kV from France and
130kV from Switzerland). If one of them fails switchover to the other occurs
within 30". If both fail, diesel generators come up within 10'.
With our apologies,
Ludwig Pregernig
(phone: 022-7672666, mobile: 076-4875370)
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jérôme Tissières
Sent: 16 May 2006 14:18
To: [email protected]
Subject: [swinog] Power outage in CERN
Hi all,
It seems the CERN have (again) a power outage, but not all is down.
The hotline is not reachable... anybody have more infos ?
Thanks,
Jerome
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