Frederick Bordry
22/01/2007, 09:00
Introduction to the ATC/ABOC days
Slides
Bettina MIKULEC
22/01/2007, 09:15
Statistics of Operational Events and Consequences
Slides
2006 has been a difficult year for the operation of the
accelerator chain. In this presentation an overview of
the major faults occurring during operation of the
accelerators and their implications on the 2006 running
period will be given. The faults will be categorized and
the impact for different users discussed. An attempt will
be made to point out possible improvement measures.
Jose Gascon
(CERN)
22/01/2007, 09:45
Electrical Network: auto-transfer, selectivity and protection plan.
Slides
As a result of the construction of the LHC accelerator
and the consolidation of the other accelerators, the
electrical network at CERN has been under continuous
evolution. The new equipment and their requirements
have increased the complexity of the distribution
network.
Since 1993 several main substations have been
renovated while some others have remained unaltered.
New...
Anne Funken
(CERN)
22/01/2007, 10:45
Safety network at CERN
Slides
In introduction, the four levels of availability of the CERN electrical supply will be
explained. The presentation will then focus on the diesel-generator assured
and safety networks, describing the tasks fulfilled by these networks, the types
of load connected, the autonomy available, the philosophy chosen for each site
(Meyrin, SPS with North Area and CNGS, LHC) and the corresponding...
Karsten KAHLE
22/01/2007, 11:15
Static Var and Harmonics Compensators at CERN
Slides
The Static Var Compensators at CERN are critical for the operation of the
machines since a breakdown of an SVC usually stops the corresponding
accelerator chain.
This presentation will analyse the technical state of all SVCs at CERN and
classify the risk of breakdown for each individual installation, including expected
machine downtimes for major failure scenarious.
This analysis...
Jean-Paul Burnet
(AB/PO)
22/01/2007, 11:45
PS main Power System
Slides
The PS main magnets are fed by a very special power
system including a 90MVA rotating machine in operation
since 1968. In 2004, an earth fault appeared on the
generator rotor and the spare rotor had to be installed.
The machine was stopped during six weeks in 2006 to
replace again the rotor, suffering of insulation problems.
The presentation will show the actions taken to reduce...
