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Maintenance of safety-critical systems :

LBDS - MKD / MKB on LHC

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MKD & MKB generators in the tunnel (Point #6)

Aim of LS1 for LBDS – MKD/MKB: refurbishment of all the MKD & MKB generators (in operation + spare)

35 MKD 30 in the tunnel + 5 spare 10 MKB H 8 in the tunnel + 2 spare 14 MKB V 12 in the tunnel + 4 spare

FPS actions performed during LS1:

Disassembled all the MKD & MKB generators in the lab (867)

Checked and cleaned all the mechanical parts Checked, cleaned and measured all the electrical and

electronic components of MKD & MKB (caps, diodes, GTO,…)

HV test after generators refurbishment (tunnel) Stored and managed all the components information &

measurements (lab / tunnel) in specific databases Managed the spare parts

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MKD & MKB databases Aim of these Databases

1. Individual components:

Information : store and manage all the information like #SN, trade mark, model, reference of 5200 electrical components (GTO, caps, diodes…).

FYI MKD & MKB in the tunnel + spare = 42 ABB Stacks - 420 GTO + 28 Westcode stacks - 280 GTO + 20 Dynex stacks – 200 GTO 900 GTO to manage.

Measurements: store and manage 17.000 electrical measurements (R, C, V, I,…) performed in the lab (867).

2. Generators:

HV tests results: store and analyse 3.500 electrical measurements performed in the tunnel (point 6).

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Databases in DFS:

G:\Departments\TE\Groups\ABT\Sections\FPS\Systems\LHC\MKD_MKB & spare parts

Aim of these Databases

3. Documents:

Procedures, drawings, MKD/MKB tracking files, ...

4. MKD / MKB spare parts:

Store and manage the MKD & MKB electrical components

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Organization of the MKD & MKB databases