1. Review of hardware commissioning
Machine Advisory Committee – June 2008
Review of hardware commissioning
Roberto Saban on behalf of the Hardware Commissioning Team
Status
Procedures
Resources
Issues
Outlook

2. PR
55 visits/hour
June 12th, 2008
Roberto Saban – MAC

3. Status
June 12th, 2008
Roberto Saban – MAC

4. Individual System Tests
Status
Cooldown
Electrical QA
Individual System Tests
Powering Tests
Sector 12
Cooling down to 80K
80-20 K CD 23
Electrical quality assurance ongoing. Individual system tests at cold starting next Monday.
2 K
IST 34
Cooling down to 4.5K. Electrical quality assurance expected to start in 2 weeks
30-20 K 45
Commissioned for the first time beginning of this year. Being cooled down after consolidation work and the connection of the inner triplet left of Point 5 K 56
Commissioned to 6.58 TeV. Quench campaign ongoing to reach 7 TeV in the dipole circuits. Almost all other circuits are compatible with 7 TeV operation PT 67
Filled. Cooling down to 2K
3 K 78
Commissioned for the first time last year. Second commissioning almost completed after consoldiation work and the connection of the inner triplet left of Point 8 81
Electrical quality assurance completed. Individual system tests at cold ongoing. Powering next Monday.
June 12th, 2008
Roberto Saban – MAC

5. Procedures The objectives are:
the validation of the protection strategies under the different failure scenarios and
the evaluation of the behavior and of the performance of
the magnet chain,
the current leads and
the power converters
during a normal LHC ramp, in steady state and during a ramp down of the current.
They are used to program the sequencer and are reviewed following each commissionig campaign
June 12th, 2008
Roberto Saban – MAC

6. Procedures One procedure per circuit type
Configuration of the Power Converter
Verification of the Protection Interlocks
Verification of the Energy Extraction System at different current levels
One procedure per circuit type
June 12th, 2008
Roberto Saban – MAC

7. Procedures
Then one document describing the specificities for each sector
June 12th, 2008
Roberto Saban – MAC

8. automation of procedures
Approved and reproducible test sequences
Assistance to operators
Automatic recording of test results
June 12th, 2008
Roberto Saban – MAC

9. computer assisted analysis
June 12th, 2008
Roberto Saban – MAC

10. quality control Automated recording but also manual data entry
Provides data for analyis tools
Ensures perennity of data
June 12th, 2008
Roberto Saban – MAC

11. real-time follow up of tests
June 12th, 2008
Roberto Saban – MAC

12. Software for operation, controls and diagnostics
Using the final software foreseen for operation for the commissioning of the machine systems
Sequencer
Logging system
Post mortem system
On-line databases
Industrial supervision systems 1
Dry runs
Injection kickers system
LHC Beam dumping system (kickers, energy tracking, diagnostics)
Beam instrumentation (loss monitors, position monitors, current transformers, screens)
Power converters in simulation mode
Collimators
Timing system
Communication with experiments (handshakes, modes, fill number, beam based measurements, etc.)
Post mortem data acquisition system
Squeeze 2
June 12th, 2008
Roberto Saban – MAC

13. Powering Groups of Circuits
the simultaneous powering of the arc and the two matching sections (LR5 and ML6) up to nominal current: 165 circuits (176 power converters) powered together up to 5 TeV equivalent current
June 12th, 2008
Roberto Saban – MAC

14. the squeeze
June 12th, 2008
Roberto Saban – MAC

15. electrical safety
All the circuits of a DFB are locked and grounded when any work is foreseen on that DFB
Access to the tunnel is not authorized when current above 1 kA is present in any of the circuits of a sector
June 12th, 2008
Roberto Saban – MAC

16. Access becomes restricted immediately after each sector reaches 80 K
access control
Access control is activated as soon as the cool down of a sector starts
Rule 1
During the powering tests and in particular above 1 kA no one must be in the tunnel.
Rule 2
No tampering with equipment already commissioned.
Access becomes restricted immediately after each sector reaches 80 K
June 12th, 2008
Roberto Saban – MAC

17. access control
June 12th, 2008
Roberto Saban – MAC

18. additonal resources: the project associate programme
Greece
France
India
Italy
Pakistan
Poland
Russia
Spain
USA
172 man·years
June 12th, 2008
Roberto Saban – MAC

19. additonal resources: the project associate programme
June 12th, 2008
Roberto Saban – MAC

20. additonal resources: the project associate programme
June 12th, 2008
Roberto Saban – MAC

21. What slows us down
Infrastructure system instabilities and late upgrades
Electrical distribution faults
Installation of Static Var Compensators
Water cooling (indirectly)
Cryogenics
Sensitivity of the cryogenic system to infrastructure instabilities
Line Y interruptions
Manning of the cryogenics control room
Other
Control system teething problems
Access control system commissioning
Safety measures
June 12th, 2008
Roberto Saban – MAC

22. Outlook Sector 78 commissioning Cold compressor AC Distribution
400 kV
400 V
Water Cooling
valves
between 3 and 4 weeks per sector
(two shifts five days a week)
76% done
June 12th, 2008
Roberto Saban – MAC

23. Outlook Cold compressor AC Distribution Water Cooling 400 kV 400 V
valves
Commissioning Coordinator
Analysis Team
Magnet Performance Panel
Engineer in Charge
Operator
Quench Protection Team
Powering Team
Quench Protection Team
InterlockTeam
Deployed for 4 fronts in parallel
Support Teams in the Field
June 12th, 2008
Roberto Saban – MAC

24. Outlook
early August!
June 12th, 2008
Roberto Saban – MAC