1. Brief report of the hardware commissioning activities
Roberto Saban on behalf of the Hardware Commissioning Teams in the AT,AB & TS Departments
Short Circuit Tests
Commissioning of machine systems in the Long Straight Sections
Commissioning of Sector 78
Preparation for Commissioning for the other sectors
Deployement and Resources
Notable events
Sct : difficult start, now routine, mastered by many
LSS : mostly carried-out by equipment groups (RF, injection, etc) but warm magnets
Preparation : a lot learnt from 78, being applied to 45, 81 & 34
The sc magnet commissioning would be the most difficult, dense and delicate

2. official schedule

3. major events & timeline
Stable cryogenic 2K
Average magnet temperature in Sector 78
Simulated

4. major events & timeline
Simulated
Longer filling time,
interruptions of utility systems,
difficulties with the tuning of the pumping group,
swap of the cryoplant
& DFB commissioning
Stable cryogenic 2K
Average magnet temperature in Sector 78
First time
Huge cryoplant, novel techniques on real load
Several large components never even cooled down
A lot of experience gained which will profit in the coming sectors

5. major events & timeline
Verification of the Voltage Taps on the HTS CL
Longer filling time,
interruptions of utility systems,
difficulties with the tuning of the pumping group,
swap of the cryoplant
& DFB commissioning
Stable cryogenic 2K
Average magnet temperature in Sector 78

6. major events & timeline
80K
Verification of the Voltage Taps on the HTS CL
Filling of the arc magnet coldmasses
Swap of cryoplant and tuning
First superfluid helium in the arc
Stable cryogenic 2K
DFBs cleared for operation with current
4.5K Magnet & associated DFBs full with liquid
Average magnet temperature in Sector 78

7. major events & timeline
Swap of cryoplant and tuning
First superfluid helium in the arc
Stable cryogenic 2K
DFBs cleared for operation with current
Average magnet temperature in Sector 78

8. non conformities Voltage tap of QF Intermittent fault on QD
Presence of a few SSS with known bus-bar non-conformity
Presence of a « Bad » dipole
Doubts about the quality of some interconnects

9. Circuits powered from the powering areas via DFBs
Circuit Type
Sector
LHC
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-1
13 kA 3 24
Indipendently Powered Dipoles 2 1 16
Indipendently Powered Quadrupoles 14 7 6 13 12 5 78
600A with Energy Extraction 23 27 28
202
600A Energy Extraction in Converter 20
136
600A no Energy Extraction 9 72
80-120A Correctors 50 37 22 33
284
TOTAL
123
105 83 99 95 79
812
Limited Current: RB (2 kA), RQF (6.5 kA), RQD (350 A) 3
Only RD2, Inner triplet dipole not available 1
Only RQ4 and RQ5 2
14 Line-N Circuits, 3 spool piece correctors & 2 MQTLH 19
Three Line-N Circuits
RCO and inner triplet correctors not available
Q4 and Q5 available correctors 7
Minimum Total Required 35
Voltage tap of QF
Intermittent fault on QD
Presence of a few SSS with known bus-bar non-conformity
Presence of a« Bad » dipole
Doubts about the quality of some interconnects
Circuits powered from the arc
Circuit Type
Sector
LHC
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-1
60A Closed Orbit Correctors 94
752 4
5/7/2019
Roberto Saban

10. commissioning of circuits
First superfluid helium in the arc
Stable cryogenic 2K
DFBs cleared for operation with current
4.5K Magnet & associated DFBs full with liquid
Average magnet temperature in Sector 78
ElQA & Powering of four 60A circuits

11. commissioning of circuits
First superfluid helium in the arc
Stable cryogenic 2K
DFBs cleared for operation with current
4.5K Magnet & associated DFBs full with liquid
Average magnet temperature in Sector 78
DFB commissioning
ElQA & Powering of all the circuits in the matching section left of Point 8
All powered to nominal current

12. commissioning of circuits
First superfluid helium in the arc
Stable cryogenic 2K
DFBs cleared for operation with current
4.5K Magnet & associated DFBs full with liquid
Average magnet temperature in Sector 78
ElQA of the arc magnets

13. Electrical Quality
Must further investigate the design of the electronics for the cryogenic instrumentation

14. progress DFBs cleared for operation with current
Stable cryogenic 2K

15. notable events: coupling between Q4 and D2
After the separate commissioning of all the matchings section magnets at operating at 4.5K, the magnets were powered in unison varying the current in one of the magnets (Q4) while the other (D2) was sitting at nominal current. A coupling between the two circuits was observed, since D2 quenched. The experiment was repeated and gave consistently the same result. The probable cause is a cold cabling non-conformity:

16. notable events: coupling between Q4 and D2

17. notable events: insulation fault in the dipole circuit
QPS
DFBAN
DFBAO
MBB
MBA
Time of flight measurement along the transmission line

18. sector 78 is closed Access control point Locked door allowing escape

19. Hardware Commissioning
organization
16.30
7.00
15.00
22.00
morning shift
8.30
afternoon shift
HCC
EIC
PIC
POC
MELC
MPP
CPP
ACR
VAC CV EL
Soft
Hardware Commissioning
Coordination Meeting

20. on call outside normal working hours
the CCC & the field
HCC
EIC OP
FCR Point8
or CCC
2 shifts
POT
POI
QPS EE
QPS EE
PIC
Cryo
the field
Equipment owners
on call outside normal working hours
on-call during normal working hours
good will outside normal working hours
HCC
MPP
Mr Circuit
CPP EL CV
MEL-CF
POE
QPS/EE CO
PIC
MEL-CF
VAC
ACR

21. the actors Cryogenics DFBs Electrical Quality Assurance
Quench Protection
Power Converters
Magnet constructors
Interlocks
Energy Extraction
Controls
Glued together by Hardware Commissioning Coordination and the Operation Group

22. the tools targeted diagnostic instrumentation
automated test program sequencing
performant diagnostic tools
logging system
monitoring web pages
post mortem & analysis tool
collaborative tools
logbook
twiki
mtf

23. What can slow us down? Non-conformities observed during ELQA
The commissioning the cryogenic system and DFBs
The commissioning the DFBs with current
Time for fixing issues, such as condensation on the DFBs, on current leads, …
Time for quenching magnets
Time for cool down after a quench
The availability of the cryogenic system
The availability of utilities (water, electricity, computer network)
Unexpected/training quenches
Data analysis of unexpected events
5/7/2019
Roberto Saban

24. … in summary sector 78 is far from being commissioned
what is commissioned however is:
operating mode
automate sequencing of tests
diagnostic tools
test data recording tools
quality assurance and progress follow up
above all, the team is built and is performing well