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Accelerators Technical and Operation Review (ATC/ABOC Days)

22–24 Jan 2007
CERN, 874-1-011
Europe/Zurich timezone

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Session

Session 1: Major Events

Session 1
22 Jan 2007, 09:00
874-1-011 (CERN, 874-1-011)

874-1-011

CERN, 874-1-011

1211 Geneva, Switzerland

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  1. 80. Introduction to the ATC/ABOC days
    Frederick Bordry
    22/01/2007, 09:00
    Introduction to the ATC/ABOC days
    Slides
  2. 26. Statistics of Operational Events and Consequences
    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.
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  3. 52. Electrical network: selectivity and protection plan
    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...
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  4. 46. The safety electrical networks at CERN
    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...
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  5. 41. The situation of the Static Var Compensators at CERN - risk analysis, maintenance strategy and consolidation
    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...
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  6. 64. PS MAIN POWER SYSTEM: What has been done from June 2006? What will be the situation in 2007?
    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...
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