Upload
mae-harper
View
217
Download
0
Embed Size (px)
DESCRIPTION
MPE Workshop for LS1 / 22 & 23 Nov. 2012, G. D’Angelo TE/MPE-EE 3 Arc Interconnection Verification: magnet replacement What is A.I.V. ? o It is a test that verifies the continuity and polarity of the ARC and DS superconducting circuits during the assembly phase of the machine. o The Line N circuits and the Spools circuits are checked. o HVQN is part of AIV. It verifies the electrical continuity and High Voltage insulation (1000V) of the Line N: After removal After transport, before reinstallation, laying down After re-insertion, before connection
Citation preview
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
1
ELQA during LS1 train, Special measurements
and NCsMagnet replacement: AIV
Splices consolidations: PAQ_LS1
Non Conformities
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
2
Arc Interconnection Verification: magnet replacement
• What is A.I.V. ?
• Why is it needed?
• How is it performed?
• When is it performed?
• ELQA resources estimated?
• Safety issues
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
3
Arc Interconnection Verification: magnet replacement
• What is A.I.V. ?o It is a test that verifies the continuity and polarity of the ARC and DS
superconducting circuits during the assembly phase of the machine.
o The Line N circuits and the Spools circuits are checked.
o HVQN is part of AIV. It verifies the electrical continuity and High Voltage insulation (1000V) of the Line N:• After removal• After transport, before reinstallation, laying down• After re-insertion, before connection
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
4
Arc Interconnection Verification: magnet replacement
• How is AIV performed?• AIV is performed in two steps AIV1 (Line N inserted before US welding)
and AIV2 (Line N US welded). • The continuity of a circuit is checked by sensing a current at both sourcing
and sinking ends. The polarity and the type of the connected magnet are checked by measuring the expected voltage between the magnet voltage tap i.e. the port A and the sinking end
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
5
Arc Interconnection Verification: magnet replacement
• When is it performed?During LS1, AIV must be performed whenever a
magnet is being replaced: 19 magnets !
RE1
8
RE
22
RE2
8
UJ3
2
RE3
8
RE
42
RE4
8
RE5
2
RE5
8
RE
62
RE
68
RE7
2
RE7
8
RE8
2
RE8
8
RE
12
Pt 5 LSSArc 23 LSS Pt 3 LSS Arc 34 LSSPt 1 LSS Arc 12 LSS Pt 2 LSS
MAY MAY
Arc 81 LSSR2E R2E R2E
Pt 7 LSS Arc 78 LSS Pt 8 LSSArc 56 LSS Pt 6 LSS Arc 67 LSSPt 4 LSS Arc 45 LSS
APR
8 8
1 1
FEB FEB
2013
2013
2 2
3 3
MAR MAR
4 4
5 5
6 6
7 7
12
APR9 9
10 10
11 11
16 16
13 13
14 14
15 15
12
JUNE
17 17
JUNE18 18
19 19
AUG AUG
26 26
27 27
20 20
JULY
21 21
JULY22 22
23 23
28 28
29 29
30 30
24 24
25 25
SEPT SEPT31 31
32 32
33 33
34 34
42 42
OCT OCT
35 35
36 36
37 37
38 38
47 47
JAN JAN
48 48
43 43
DEC DEC44 44
45 45
46 46
NOV
39 39
NOV40 40
41 41
2014
2014
49 49
50 50
51 51
52 52
FEB FEB53 53
54 54
55 55
56 56
MAR MAR57 57
58 58
59 59
60 60
APR APR
61 61
62 62
63 63
64 64
69 69
JUNE JUNE70 70
71 71
72 72
MAY MAY
65 65
66 66
67 67
68 68
73 73
JULY JULY
74 74
75 75
76 76
77 77
AUG
78 78
AUG79 79
80 80
81 81
82 82
SEPT SEPT83 83
84 84
85 85
86 86
OCT OCT
87 87
88 88
NOV NOV92 92
93 93
94 94
89 89
90 90
91 91
DEC
95 95
DEC96 96
97 97
98 98
99 99
DFBAK
Cabl
ing
Cam
paig
n
CRYO
CRYO
CRYO
CRYO
EPC 60A
EPC 60A
VSC IV
EPC 60A
EPC 60A
MPE
EE
MPE
EE
MPE EE
DYPBDYPB
DYPB
DYPB
Cool-Down
Cool-Down
Cool-Down
Cool-Down
IC train
ELQA
Powering tests
ELQA
UPS
ELQA
Leak tests
Powering tests
ELQA
Warm Up
IC train
Cool-Down
UPS
Preparation
Flushing
IC train
Powering tests
Powering tests
IC train
IC train
Powering tests
ELQA
Preparation
Flushing
Powering tests
ELQA
Wat
er C
oole
d ca
bles
MKI
gene
rato
rs m
aint
enan
ce
Wat
er C
oole
d ca
bles
WARM UP
ELQA
POWERING TESTS
UPS
POWERING TESTS
ELECTRICAL Maint. (No access)
ELECTRICAL Maint. (No access)
PREPARATION
FLUSHING
COOL DOWN
FLUSHING
PREPARATION
C15R1 A
22R1
C30R1
C33R1
C33L2
A29L2
B25R2
A23R2 C
15L3
Q7R3
Q23R3
Q26R3
Q27R3
B32R3
C17R4
B31R4
Colli
mat
or c
ontr
ol
Colli
mat
or c
ontro
lM
KI ge
nera
tors
MKQ
ARF
ACS
Wat
er C
oole
d ca
bles
Colli
mat
or c
ontr
ol
Wat
er C
oole
d ca
bles
MKD
mai
nten
ance
& a
dd. t
ank
MKD
mai
nten
ance
& a
dd. t
ank
MKD
& M
KB g
ener
ator
s mai
nten
ance
Colli
mat
or c
ontro
l
Colli
mat
or c
ontro
l
Colli
mat
or c
ontro
l
Wat
er C
oole
d ca
bles
Cabl
ing
Cam
paig
n
CV a
ctivi
ties
UPS
relo
catio
nR2
Eca
blin
g fo
r cry
oSh
ield
ing
C15R
1
Powering tests
ELQA
Warm Up
ELQA
Leak tests
A22R
1
C30R
1
C33R
1
C33L
2
A29L
2
UPS
Preparation
Flushing
Warm Up
ELQA
ELQA
Leak tests
A23R
2
B25R
2
IC train
Warm up
ELQA
CSCM
ELQA
Leak tests
Q7R
3
Q23
R3
A26R
3
Q27
R3
B32R
3
Preparation
Flushing
Powering tests
ELQA
C17R
4
B31R
4
UPS
UPS
Preparation
Cool-Down
Flushing
Powering tests
ELQA
ELQA
Warm Up
ELQA
Leak tests
Powering tests
ELQA
Warm Up
ELQA
Leak tests
UPS
UPS
ELQA
Powering tests
ELQA
Preparation
ELQA
Leak tests
UPS
Powering tests
ELQA
Powering tests
ELQA
Warm Up
IC train
PreparationFlushing
Flushing
UPS
Cool-Down
Powering tests
Preparation
Flushing
IC train
ELQA
Leak tests
Powering tests
ELQA
Warm Up
Electrical maintenance - No access
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Christmas
Com
mis
ioni
ng o
f eq
uipm
ent
Shie
lddi
ng R
R &
UJ
plug
Relo
c.
shie
ldi
ng
Access
Prep
. w
.D
ism
antli
ngPi
ping
Cabl
e Ca
mpa
ign
Cryo
.Pr
ep . w.
Dism
antli
ngPi
ping
Opt. Fib.
PC
Ethernet
Pipe
s & U
TAW
ater
Coo
led
cabl
es
Com
mis
ioni
ng o
f eq
uipm
ent
Shie
lddi
ng R
R &
UJ
plug
Relo
c.
shie
ldin
g
Access
Cabl
e Ca
mpa
ign
Cryo
.
Opt. Fib.
PC
Ethernet
CV :
UTA
& p
ipes
Cryo
geni
cs
Com
mis
ioni
ng o
f Ca
blin
g Ca
mpa
ign
Dismantling & dicsonnection
Pipi
ng &
Venti
latio
n W
ater
Co
oled
ca
bles
O.F.
(II &
III)
PC
Mov
e ra
cks
Acce
ss
Dismantling & dicsonnection
Cabling campaign
Civi
l eng
inee
ring
(incl
. pro
tecti
on)
Dism
antle
OF
Cryo
geni
cs
Acce
ss
Alar
ms
Cabl
eTr
ayM
ove
rack
s
UTA
Ethe
rnet
Chic
ane
Vacu
um
Electrical maintenance - No access
CE
Cool-Down
Pipe
s & U
TAW
ater
Coo
led
cabl
es
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
Q5L
8
C15L
3
B30R
7
B21L
8
Cabling Sart
Cabling Start
Cabling Sart
Civi
l eng
inee
ring
(inc
l. pr
otec
tion
)
Mur
tym
pan
Shie
lddi
ng R
R 53
Shie
lddi
ng R
R 57
Safe
Roo
m (
I)
Cabl
eTr
ay
Pipi
ngO
.F. (
I))
Dive
rse
Wor
ks
Ethe
rnet
Mov
e ra
cks
Com
mis
ioni
ng o
f
0 0
DYPB
DYPB
DYPB
DYPB + MPE EPDYPB + MPE EP
VSC IV
VSC IV
VSC IV
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
ELQA
Powering tests
MPE EP
MPE EP
MPE EP
MPE EP
MPE EP
DYPB
DYPB
UTA
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Electrical maintenance - No access
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
DFBX
Cabl
ing
Ca
m
Cabl
ing
Cam
paig
n
AUG Tests AUG Tests
AUG Tests
AUG Tests
DSO Tests
REPAIR LEAKS IN QRL 4-5
AUG Tests
UPS
UPS
UPS
CRYO
CRYO
CRYO
CRYO
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBX
DFBX
DFBX
DFBX
DFBX
DFBX
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
MPEEE
Electrical maintenance - No access
Electrical maintenance - No access
Voies EvacuationVoies Evacuation
Voies EvacuationVoies Evacuation
Voies EvacuationVoies Evacuation
Voies EvacuationVoies Evacuation
Voies Evacuation
SF-M
SF-
W
UW-M
SF-M1
SF-W
UW-M
UW-W
UW-M
UW-W
UW-M
SF-M
SF-
W
UW-
W
SF-
M
SF-M
UW-
M
SF-M
UW-
SF-M
UW-
SF-M
UW-
SF-
M
UW-
W
DYPB
DYPB
DYPB
DYPB
DYPB
DFBA
MKI
Beam
Vac
uum
A7L1
A4L1
A6L1
A1L1
Beam
Vac
uum
A1R1
A4R1
A6R1
A7R1
Beam
Vac
uum
MKI
TDI
A6L2
A1L2A4L2
B1L2
A7L2
I5L2
A5L2
C4L2
Beam
Vac
uum
A1R2
A4R2
A5R2
A7R2
Beam
Vac
uum
A7L3
B5L3
A5L3
A4L3
IP3
A5R3
B5R3
A7R3
Beam
Vac
uum
A7L4E5L4D5L4B5L4D5R
4E5R4
IP4A6R
4
A7R4
Beam
Vac
uum
A7L5
A6L5B4L5
A1L5A5L5A4L2
Beam
Vac
uum
A1RA4RA5R
B4R5
A6RA7R
Beam
Vac
uum
E5L6
A5L6
A4L6
IP6
IP6
A4R6
C5R6
A5R6
Beam
Vac
uum
A7L7
A7R7
A67B57A57IP7A4RA5RB5RA6R
Beam
Vac
uum
A7L8
A6L8A5L8A1L8
A4L8
Beam
Vac
uum
A4RA1RI5RA6R
B4R8
C4R8
A5R8
MKI
A7R8
Christmas
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
pai
gn
Cabl
ing
Cam
paig
n
Test AUG (R2E)- No access
Safe
Roo
m (
II)
Test Fire Detection(R2E) - No access
Test Fire Detection (R2E) - No access
Start Cabling
Test AUG (R2E) - No accessAUG TestsAUG Tests
Modification ODH (R2E) - No Access
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUART
ERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTE
RLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTE
RLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
AUG Tests
VSC IV
Electrical maintenance - No access
DFBX
Detection Incendie_ANNUAL
ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_A
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_A
FLASH TEST ODH_ANNUAL
OF_CONOF_CON
OF_CON
OF_CON
OF_CO
OF_REM
OF_REM
OF_REM
OF_REM
OF_REM
OF_REM
O_REMF
OF_REMO
O
OF_CONOF_CO
OF_REM
OF_REM
O
O
OO
O
O
A.I.V activity start in June 2013 and finish October 2013
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
6
Arc Interconnection Verification: magnet replacement
• ELQA - AIV resources?o Hardware: we have 2 AIV measuring systems available. One system
is needed per AIV test.o Test duration: once the measuring system is installed on place (need
Pefra to transport it), the test duration is about 2 hours / AIV test.o Manpower planed: 1 team of 3 persons from HNINP, can be doubled
if needed.
0
2
4
6
8
10
12 PAQ & AIV with Line N
W.P. 2 Ext. Tecnicians*months
W.P. 2 Ext. Engineers*months
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
7
Arc Interconnection Verification: magnet replacement
• ELQA - AIV resources?o Manpower : we should be able to cope our needs with the
collaboration from HNINP and the CERN staff from EE section.o Software: AIV is based on a Labview program, already used during
machine assembly (WinXP). We will not invest resources to update the program.
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
8
Arc Interconnection Verification: magnet replacement
• Safety issue?o The area under test is patrolled by the ELQA team before
starting the test.o One person has to be present at each extremity of the
test area during all the time when the high voltage is applied.
o Habilitation éléctrique B1o Standard safety course to access the tunnelo Safety equipment to access the tunnel: helmet, front light,
safety shoes, bio-cell, jacket…
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
9
Partial Assembly Qualification during LS1: “train” follow-up
• What is PAQ during LS1 ?
• What are the requirements?
• Duration for PAQ test?
• PAQ resources?
• PAQ safety issue?
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
10
What is PAQ during LS1
• What is Partial Assembly Qualification for LS1 ?
o Initially used during LHC assembly, the procedure is adapted for LS1 condition: segment length is the whole sector!
o The PAQ test consists of two steps of verifications:• Electrical continuity verification of spool-pieces circuits
(M1 and M2 lines).• High Voltage qualification on RB (in M3 line), RQD, RQF
and Spool-pieces circuits , (M1 and M2 lines).
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
11
PAQ configuration during LS1
o Configuration of a sector during consolidation:
All busbars must be kept insulated from each other and from ground at each level of the consolidation work. This is the duty of the consolidation work teams.
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
12
PAQ requirements during LS1
• What are the requirements from ELQA for PAQ during LS1 «train» follow-up ?o DC warm cables must be disconnected from the current leads, the
instrumentation cables as well (ELQA team, already done during TP4 campaign)
o Before starting the consolidation of a sector, the insulation must be removed from RB, RQD, RQF and the spool circuits open at one interconnection on the odd point TE/MSC-LMF
o These conditions must be kept during the whole period of splices consolidation in the sector.
o Preparation work for PAQ test will start before 17:00. At 17:00 (5PM), the consolidation work, including QC must be completed. The patrol will start at 5PM. During High Voltage test, no personnel but ELQA team must stay in the ARC (safety condition).
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
13
PAQ: How long does it last?
• When is it performed?During LS1, PAQ must be performed during the whole
period of splice consolidation, daily basis, from 5PM!
RE1
8
RE
22
RE2
8
UJ3
2
RE3
8
RE
42
RE4
8
RE5
2
RE5
8
RE
62
RE
68
RE7
2
RE7
8
RE8
2
RE8
8
RE
12
Pt 5 LSSArc 23 LSS Pt 3 LSS Arc 34 LSSPt 1 LSS Arc 12 LSS Pt 2 LSS
MAY MAY
Arc 81 LSSR2E R2E R2E
Pt 7 LSS Arc 78 LSS Pt 8 LSSArc 56 LSS Pt 6 LSS Arc 67 LSSPt 4 LSS Arc 45 LSS
APR
8 8
1 1
FEB FEB
2013
2013
2 2
3 3
MAR MAR
4 4
5 5
6 6
7 7
12
APR9 9
10 10
11 11
16 16
13 13
14 14
15 15
12
JUNE
17 17
JUNE18 18
19 19
AUG AUG
26 26
27 27
20 20
JULY
21 21
JULY22 22
23 23
28 28
29 29
30 30
24 24
25 25
SEPT SEPT31 31
32 32
33 33
34 34
42 42
OCT OCT
35 35
36 36
37 37
38 38
47 47
JAN JAN
48 48
43 43
DEC DEC44 44
45 45
46 46
NOV
39 39
NOV40 40
41 41
2014
2014
49 49
50 50
51 51
52 52
FEB FEB53 53
54 54
55 55
56 56
MAR MAR57 57
58 58
59 59
60 60
APR APR
61 61
62 62
63 63
64 64
69 69
JUNE JUNE70 70
71 71
72 72
MAY MAY
65 65
66 66
67 67
68 68
73 73
JULY JULY
74 74
75 75
76 76
77 77
AUG
78 78
AUG79 79
80 80
81 81
82 82
SEPT SEPT83 83
84 84
85 85
86 86
OCT OCT
87 87
88 88
NOV NOV92 92
93 93
94 94
89 89
90 90
91 91
DEC
95 95
DEC96 96
97 97
98 98
99 99
DFBAK
Cabl
ing
Cam
paig
n
CRYO
CRYO
CRYO
CRYO
EPC 60A
EPC 60A
VSC IV
EPC 60A
EPC 60A
MPE
EE
MPE
EE
MPE EE
DYPBDYPB
DYPB
DYPB
Cool-Down
Cool-Down
Cool-Down
Cool-Down
IC train
ELQA
Powering tests
ELQA
UPS
ELQA
Leak tests
Powering tests
ELQA
Warm Up
IC train
Cool-Down
UPS
Preparation
Flushing
IC train
Powering tests
Powering tests
IC train
IC train
Powering tests
ELQA
Preparation
Flushing
Powering tests
ELQA
Wat
er C
oole
d ca
bles
MKI
gene
rato
rs m
aint
enan
ce
Wat
er C
oole
d ca
bles
WARM UP
ELQA
POWERING TESTS
UPS
POWERING TESTS
ELECTRICAL Maint. (No access)
ELECTRICAL Maint. (No access)
PREPARATION
FLUSHING
COOL DOWN
FLUSHING
PREPARATION
C15R1 A
22R1
C30R1
C33R1
C33L2
A29L2
B25R2
A23R2 C
15L3
Q7R3
Q23R3
Q26R3
Q27R3
B32R3
C17R4
B31R4
Colli
mat
or c
ontr
ol
Colli
mat
or c
ontro
lM
KI ge
nera
tors
MKQ
ARF
ACS
Wat
er C
oole
d ca
bles
Colli
mat
or c
ontr
ol
Wat
er C
oole
d ca
bles
MKD
mai
nten
ance
& a
dd. t
ank
MKD
mai
nten
ance
& a
dd. t
ank
MKD
& M
KB g
ener
ator
s mai
nten
ance
Colli
mat
or c
ontro
l
Colli
mat
or c
ontro
l
Colli
mat
or c
ontro
l
Wat
er C
oole
d ca
bles
Cabl
ing
Cam
paig
n
CV a
ctivi
ties
UPS
relo
catio
nR2
Eca
blin
g fo
r cry
oSh
ield
ing
C15R
1
Powering tests
ELQA
Warm Up
ELQA
Leak tests
A22R
1
C30R
1
C33R
1
C33L
2
A29L
2
UPS
Preparation
Flushing
Warm Up
ELQA
ELQA
Leak tests
A23R
2
B25R
2
IC train
Warm up
ELQA
CSCM
ELQA
Leak tests
Q7R
3
Q23
R3
A26R
3
Q27
R3
B32R
3
Preparation
Flushing
Powering tests
ELQA
C17R
4
B31R
4
UPS
UPS
Preparation
Cool-Down
Flushing
Powering tests
ELQA
ELQA
Warm Up
ELQA
Leak tests
Powering tests
ELQA
Warm Up
ELQA
Leak tests
UPS
UPS
ELQA
Powering tests
ELQA
Preparation
ELQA
Leak tests
UPS
Powering tests
ELQA
Powering tests
ELQA
Warm Up
IC train
PreparationFlushing
Flushing
UPS
Cool-Down
Powering tests
Preparation
Flushing
IC train
ELQA
Leak tests
Powering tests
ELQA
Warm Up
Electrical maintenance - No access
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Christmas
Com
mis
ioni
ng o
f eq
uipm
ent
Shie
lddi
ng R
R &
UJ
plug
Relo
c.
shie
ldi
ng
Access
Prep
. w
.D
ism
antli
ngPi
ping
Cabl
e Ca
mpa
ign
Cryo
.Pr
ep . w.
Dism
antli
ngPi
ping
Opt. Fib.
PC
Ethernet
Pipe
s & U
TAW
ater
Coo
led
cabl
es
Com
mis
ioni
ng o
f eq
uipm
ent
Shie
lddi
ng R
R &
UJ
plug
Relo
c.
shie
ldin
g
Access
Cabl
e Ca
mpa
ign
Cryo
.
Opt. Fib.
PC
Ethernet
CV :
UTA
& p
ipes
Cryo
geni
cs
Com
mis
ioni
ng o
f Ca
blin
g Ca
mpa
ign
Dismantling & dicsonnection
Pipi
ng &
Venti
latio
n W
ater
Co
oled
ca
bles
O.F.
(II &
III)
PC
Mov
e ra
cks
Acce
ss
Dismantling & dicsonnection
Cabling campaign
Civi
l eng
inee
ring
(incl
. pro
tecti
on)
Dism
antle
OF
Cryo
geni
cs
Acce
ss
Alar
ms
Cabl
eTr
ayM
ove
rack
s
UTA
Ethe
rnet
Chic
ane
Vacu
um
Electrical maintenance - No access
CE
Cool-Down
Pipe
s & U
TAW
ater
Coo
led
cabl
es
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
Q5L
8
C15L
3
B30R
7
B21L
8
Cabling Sart
Cabling Start
Cabling Sart
Civi
l eng
inee
ring
(inc
l. pr
otec
tion
)
Mur
tym
pan
Shie
lddi
ng R
R 53
Shie
lddi
ng R
R 57
Safe
Roo
m (
I)
Cabl
eTr
ay
Pipi
ngO
.F. (
I))
Dive
rse
Wor
ks
Ethe
rnet
Mov
e ra
cks
Com
mis
ioni
ng o
f
0 0
DYPB
DYPB
DYPB
DYPB + MPE EPDYPB + MPE EP
VSC IV
VSC IV
VSC IV
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
EPC 60A
ELQA
Powering tests
MPE EP
MPE EP
MPE EP
MPE EP
MPE EP
DYPB
DYPB
UTA
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Electrical maintenance - No access
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
DFBX
Cabl
ing
Ca
m
Cabl
ing
Cam
paig
n
AUG Tests AUG Tests
AUG Tests
AUG Tests
DSO Tests
REPAIR LEAKS IN QRL 4-5
AUG Tests
UPS
UPS
UPS
CRYO
CRYO
CRYO
CRYO
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBA
DFBX
DFBX
DFBX
DFBX
DFBX
DFBX
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
QRL service Modules
MPEEE
Electrical maintenance - No access
Electrical maintenance - No access
Voies EvacuationVoies Evacuation
Voies EvacuationVoies Evacuation
Voies EvacuationVoies Evacuation
Voies EvacuationVoies Evacuation
Voies Evacuation
SF-M
SF-
W
UW-M
SF-M1
SF-W
UW-M
UW-W
UW-M
UW-W
UW-M
SF-M
SF-
W
UW-
W
SF-
M
SF-M
UW-
M
SF-M
UW-
SF-M
UW-
SF-M
UW-
SF-
M
UW-
W
DYPB
DYPB
DYPB
DYPB
DYPB
DFBA
MKI
Beam
Vac
uum
A7L1
A4L1
A6L1
A1L1
Beam
Vac
uum
A1R1
A4R1
A6R1
A7R1
Beam
Vac
uum
MKI
TDI
A6L2
A1L2A4L2
B1L2
A7L2
I5L2
A5L2
C4L2
Beam
Vac
uum
A1R2
A4R2
A5R2
A7R2
Beam
Vac
uum
A7L3
B5L3
A5L3
A4L3
IP3
A5R3
B5R3
A7R3
Beam
Vac
uum
A7L4E5L4D5L4B5L4D5R
4E5R4
IP4A6R
4
A7R4
Beam
Vac
uum
A7L5
A6L5B4L5
A1L5A5L5A4L2
Beam
Vac
uum
A1RA4RA5R
B4R5
A6RA7R
Beam
Vac
uum
E5L6
A5L6
A4L6
IP6
IP6
A4R6
C5R6
A5R6
Beam
Vac
uum
A7L7
A7R7
A67B57A57IP7A4RA5RB5RA6R
Beam
Vac
uum
A7L8
A6L8A5L8A1L8
A4L8
Beam
Vac
uum
A4RA1RI5RA6R
B4R8
C4R8
A5R8
MKI
A7R8
Christmas
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
paig
n
Cabl
ing
Cam
pai
gn
Cabl
ing
Cam
paig
n
Test AUG (R2E)- No access
Safe
Roo
m (
II)
Test Fire Detection(R2E) - No access
Test Fire Detection (R2E) - No access
Start Cabling
Test AUG (R2E) - No accessAUG TestsAUG Tests
Modification ODH (R2E) - No Access
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUART
ERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTE
RLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTE
RLY
Detection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLYDetection Incendie/GAZ_QUARTERLY
Detection Incendie/GAZ_QUARTERLY
AUG Tests
VSC IV
Electrical maintenance - No access
DFBX
Detection Incendie_ANNUAL
ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_A
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_ANNUAL
FLASH TEST ODH_ANNUAL
Detection Incendie_ANNUAL
ODH_ANNUALODH_A
FLASH TEST ODH_ANNUAL
OF_CONOF_CON
OF_CON
OF_CON
OF_CO
OF_REM
OF_REM
OF_REM
OF_REM
OF_REM
OF_REM
O_REMF
OF_REMO
O
OF_CONOF_CO
OF_REM
OF_REM
O
O
OO
O
O
PAQ activity start in May 2013 and finish April 2014
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
14
PAQ resources during LS1
• ELQA resources?o Hardware: we will have up to 8 TP4 measuring systems. One system
is needed per PAQ test.o Test duration: once the measuring system is installed on place (need
Pefra to transport it), the test duration is about 1.5 hours / PAQ test, without any fault !
o Manpower: 2 teams of 3 persons (HNINP) + CERN Staffo Software: use TP4 software (HNINP+ M.B.) and signature WISH tool
(SMACC)
0
2
4
6
8
10
12 PAQ & AIV with Line N
W.P. 2 Ext. Tecnicians*months
W.P. 2 Ext. Engineers*months
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
15
PAQ safety issues during LS1
• For safety issueo Put the blinking warning lights on both extremities of the part of the
subsector under test. Lamps should be placed in a visible position on the floor.
o The area under test is patrolled by the ELQA team before starting the test to ensure that no one is in the subsector under test
o One person has to be present at each extremity of examined length during all the time when the high voltage is applied.
o During the patrol, verify that the segment under test is insulated from anything else (visual inspection).
o Habilitation éléctrique B1o Standard safety course to access the tunnelo Safety equipment to access the tunnel: helmet, front light, safety
shoes, bio-cell, jacket…o Will finish “late at night”. Cars are foreseen for teams in the tunnel!
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
No 1-2 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
50 QN-ELQA-MIC-C-HVQ-LQXAA.1R1.001 1017174 Cold LQXAA.1R1HCLQXA_001-FL000006HVQN QH 26-Aug-09 MP3 action OK InitiatedOn DFBXB_3R1, quench heater YT1121 of magnet Q1 is showing a weak electrical insulation to ground (Breakdown at 1100 Volts). P lease refer to the attached excel document for a full diagnostic of all quench heaters of this inner triplet.
55 QN-ELQA-TP4E-HVQ-RCO.A12B2-001 1193222 Cold RCO.A12B2 HVQ 21-Feb-12 TE/MPE action OK InitiatedDuring the high voltage qualification of RCO.A12B2 circuit, the leakage current was too high (about 1mA).The problem comes most probably from the Lemo connector used to rout the
56 QN-ELQA-TP4E-HVQ-RCBCH6.L2B2-0011195151 Cold RCBCH6.L2B2 HVQ 22-Feb-12 TE/MPE action OK InitiatedFollowing the breakdown that occurred on the RCO.A12.B2 (see NC 1193222), it was decided to repeat the qualification of the circuit where the instrumentation is routed in the same connector.
58 QN-ELQA-TP4E-ICC-RCOX3.L2-001 1203477 Cold RCOX3.L2 ICC 6-Mar-12 TE/MPE action OK InitiatedFollowing the X-mas beak 2011-12, this circuit has been found open. Diagnostic ongoing.The diagnostic performed by ELQA team confirms that the circuit is open in the
59 QN-ELQA-TP4E-ICC-RCOSX3.L2-001 1203478 Cold RCOSX3.L2 ICC 6-Mar-12 TE/MPE action OK InitiatedFollowing the X-mas beak 2011-12, this circuit has been found open. Diagnostic ongoing.The diagnostic performed by ELQA team confirms that the circuit is open in the
60 QN-ELQA-TP4E-ICC-RCSSX3.L2-003 1203479 Cold RCSSX3.L2 ICC 6-Mar-12 TE/MPE action OK InitiatedFollowing the X-mas beak 2011-12, this circuit has been found open. Diagnostic ongoing.The diagnostic performed by ELQA team confirms that the circuit is open in the
No 2-3 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
No 3-4 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
No 4-5 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
54 QN-MP3-IST-RB.A45-B31R4-001 1061212 Cold RB.A45 MB2138 QH QPS 09-Feb-10 TE/MPE action OK InitiatedDuring IST test, QP S team found abnormal shape during the discharge of quench heaters power supply on magnet B31R4 (MBAL2138). ELQA performed a diagnostic on 08/02/2009 and found an abnormal resistance of 14,9 W instead of
No 5-6 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
39 QN-ELQA-TT893-RCD.A56B2-RCS.A56B1-0011204694 Cold RCD.A56B2RCS.A56B1 CRG 12-Mar-12 TE/MPE action OK InitiatedDuring X-mas break 2011-12, TE/CRG noticed that the warm temperature sensor (TT893) reading of current leads #42 and #43 of DFBAK.5L6 could be swapped.Further diagnostic is needed.
No 6-7 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
31 QN-ELQA-TP4E-IRC-RQ4.R6-001 1166773 Cold RQ4.R6 IRC 20-Oct-11 TE/MPE InitiatedDuring machine operation, following heavy beam losses, magnet RQ4.R6 quenched (03/10/2011) with firing of the quench heaters. At the same moment, the voltage tap EE11 of the current lead n°1 got open and remained in this state for
No 7-8 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
10 QN-ELQA-TP4D-ORC-MCBCHS5.L8B1-001831927 Cold MCBCHS5.L8B1 S4_606 ORC 28-Mar-07 Ongoing OK Under w ay Circuit MCBCHS5.L8B1 shows high resistance (around 22 mohm)on the cold side at 4.5 K.
53 QN-ELQA-DOC-C-RCBH31.R7B1.001 1017094 Cold RCBH31.R7B1 ICC 26-Aug-09TE/MSC-SCD
actionOK Initiated
The Hi current lead resistance (DFLDS.31R7.2) is too high (1.14e-3 Ohm). TE/MSC intervention required. Test repeated after TE/MSC-SCD intervention.
64 QN-ELQA-TP4E-HVQ-MBB.A78-002 1060444 Cold RB.A78 MB_1007 HVQ Coil 01-Feb-10 TE/MPE action OK I nitiatedAfter the 2010 nQP S refurbishment campaign, while qualifying the dipole line MBB (Lead#5) with nQP S cabling installed, a breakdown appeared at 1900V (01/02/2010).After disconnecting warm instrumentation (both P E), nQP S and "old QP S", the
66 QN-ELQA-TP4E-TT891-RQTL9.R7B1.0011160454 Cold RQTL9.R7B1 Cryo CL 29-Aug-11 TE/MPE action OK InitiatedThe TT891 cold temperature sensor read-out (Channel: DANB05_07R7_TT891A) was lost 8 times on current lead DFLBS.7R7.5 of circuit RQTL9.R7B1 on DFBAN.R7 since J une 2009.
No 8-1 EDMS HWC phase Circuit Equipment Application System Date Current Status MTF Status EDMS Description
39 QN-ELQA-TP4E-ICC-RCOSX3.L1-001 948545 Cold RCOSX3.L1 ICC 12-Aug-08 AT/MEI action OK InitiatedDuring ICC measurement, coil seems too be resistive (about 1.1 e-3 Ohm). In agreement with Sandor Feher, it was decided to keep the circuit as it is since there is nothing we can do. This magnet should be followed during the first steps of
46 QN-ELQA-TP4E-ICC-RCO.A81B2-001 955048 Cold RCO.A81B2 ICC 27-Aug-08 TE/MSC & MPE action
OK InitiatedCL1, CL2 and coil resistance too high (measured 05/06/08). Origin to be investigated. To be checked with cryo. NC initiated.Since this circuit is not needed for the 1st run of LHC at 5Tev, HCC decided to
List of pending ELQA NCs
• 15 NCs are “initiated” or “ Under way” status:
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
No 1-2 EDMS Circuit Equipment Application Date Status EDMS Description Influence powering tests?
55 QN-ELQA-TP4E-HVQ-RCO.A12B2-001 1193222 RCO.A12B2 HVQ 21-Feb-12 Initiated
During the high voltage qualification of RCO.A12B2 circuit, the leakage current was too high (about 1mA).The problem comes most probably from the Lemo connector used to rout the Vtaps of the 120A current leads at the level of the cheminey.During the first qualification of the circuit RCO.A12B2 individually, the test passed successfully: 200V, leakage current < 10nA.Then, the test was repeated RCO.A12B1 shorted with RCO.A12B2 passing in the same cheminey. There was a breakdown at 600V. This breakdown is most probably due to the connector used to rout the cold Vtaps of the RCO.A12B1 and B2 and also in this particular case of 120A correctors of Q6L2.The individual test of RCO.A12B1 was repeated and is fine (200V, leakage current < 10nA).The individual test of RCO.A12B2 was repeated and showed too high leakage current (200V, leakage current about 1 mA).
MP 3 should state on the use of this circuit.
Yes: Les cables DC ont ete deconnectes et mis en court-circuit
au niveau du convertisseur. Ils
n'ont pas ete mis a la terre. Le potentiel du
circuit est donc flottant.
56 QN-ELQA-TP4E-HVQ-RCBCH6.L2B2-0011195151 RCBCH6.L2B2 HVQ 22-Feb-12 Initiated
Following the breakdown that occurred on the RCO.A12.B2 (see NC 1193222), it was decided to repeat the qualification of the circuit where the instrumentation is routed in the same connector.During this qualification, the RCBCH6.L2B2 had a leakage current too high (200V, leakage current about 1 mA). The RCBCV6.L2B1 is sound.
During the qualification of RCBCH6.L2B2, all the other circuits of the sub-sector were grounded (according to the procedure), including the RC0.A12.B2 circuit.Most probably there is a weakness of insulation of the voltage taps of the circuit RCBCH6.L2B2 versus voltage taps of RC0.A12.B2 routed in the same connector.The global insulation versus ground could be verified.
MP 3 should state on the use of this circuit.
No: related to RCO.A12B2, but no
pow ering limit
58 QN-ELQA-TP4E-ICC-RCOX3.L2-001 1203477 RCOX3.L2 ICC 6-Mar-12 Initiated
Following the X-mas beak 2011-12, this circuit has been found open. Diagnostic ongoing.The diagnostic performed by ELQA team confirms that the circuit is open in the cold part of the circuit: not accessible until LS1. The three circuits found opened belong to the same magnet assembly (nested magnet MCSOX).The DC cables of the circuit are disconnected from the power converter at the power converter side, and left floating.This circuit cannot be used and is condemned.
Yes: circuit found OPEN: The DC cables
of the circuit are disconnected from
the pow er converter at the pow er
converter side, and left f loating.
59 QN-ELQA-TP4E-ICC-RCOSX3.L2-001 1203478 RCOSX3.L2 ICC 6-Mar-12 Initiated
Following the X-mas beak 2011-12, this circuit has been found open. Diagnostic ongoing.The diagnostic performed by ELQA team confirms that the circuit is open in the cold part of the circuit: not accessible until LS1. The three circuits found opened belong to the same magnet assembly (nested magnet MCSOX).The DC cables of the circuit are disconnected from the power converter at the power converter side, and left floating.This circuit cannot be used and is condemned.
Yes: circuit found OPEN: The DC cables
of the circuit are disconnected from
the pow er converter at the pow er
converter side, and left f loating.
60 QN-ELQA-TP4E-ICC-RCSSX3.L2-003 1203479 RCSSX3.L2 ICC 6-Mar-12 Initiated
Following the X-mas beak 2011-12, this circuit has been found open. Diagnostic ongoing.The diagnostic performed by ELQA team confirms that the circuit is open in the cold part of the circuit: not accessible until LS1. The three circuits found opened belong to the same magnet assembly (nested magnet MCSOX).The DC cables of the circuit are disconnected from the power converter at the power converter side, and left floating.This circuit cannot be used and is condemned.
Yes: circuit found OPEN: The DC cables
of the circuit are disconnected from
the pow er converter at the pow er
converter side, and left f loating.
50 QN-ELQA-MIC-C-HVQ-LQXAA.1R1.001 1017174 LQXAA.1R1HCLQXA_001-FL000006HVQN 26-Aug-09 InitiatedOn DFBXB_3R1, quench heater YT1121 of magnet Q1 is showing a weak electrical insulation to ground (Breakdown at 1100 Volts). P lease refer to the attached excel document for a full diagnostic of all quench heaters of this inner triplet.
Yes: current limited in the present protection
scheme to 4 TeV equiv.
High Voltage withstand issue, solved with new ELQA procedure
HV issue between RCBCH6.L2B2 and RCO.A12.B2: condemned PC side
Related to RCO.A12.B2 here above, no powering limitation
Circuits found open in the cold part. Circuits are condemned!
Pending ELQA NCs affecting powering in S12
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
No 2-3 EDMS Circuit Equipment Application Date Status EDMS Description Influence pow ering tests for 7 TeV?
No 3-4 EDMS Circuit Equipment Application Date Status EDMS Description Influence pow ering tests for 7 TeV?
No 4-5 EDMS Circuit Equipment Application Date Status EDMS Description Influence pow ering tests for 7 TeV?
54 QN-MP3-IST-RB.A45-B31R4-001 1061212 RB.A45 MB2138 QH 09-Feb-10 Initiated
During IST test, QP S team found abnormal shape during the discharge of quench heaters power supply on magnet B31R4 (MBAL2138). ELQA performed a diagnostic on 08/02/2009 and found an abnormal resistance of 14,9 W instead of nominal value of 11 W on quench heater YT111 . YT111 was also found shorted to ground via a 50 W resistance. All other quench heaters were checked (ohmic resistance and HVQ vs coil and ground) and are sound. The HVQ of the MBA line was also repeated successfully at 1900V to check that the electrical insulation of the faulty quench heater to coil was not deteriorated. This faulty quench heater will be replaced by 2 LF quench heaters according to the standard procedure for such cases. YT111 quench heater was disconnected at the level of the IFS box. NC can be closed with warnings.
Knud DAHLERUP -P ETERSEN on 2010-03-04, 09:39 said: Initiated comments The following actions were taken by QP S:1. After disconnection and securisation (by ELQA) of the wires to the faulty high-field heater in the IFS box, the QP S team re-configured, inside the Crawford box, the powering circuit no. 1. Two parallel-connected low-field heaters are now replacing the high-field heater. However, it was decided by MP 3 NOT to power these low-field heaters. QP S therefore disconnected the H.V. power cable from the DQHDS supply. This power supply remains in place, is constantly charged, but will not discharge during a discharge request. The trigger will arrive also to this unit but the thyristor opening will have no consequences. For security a plug has been inserted at the DQHDS output connector.
No, Magnet w ill be replaced during LS1
No 5-6 EDMS Circuit Equipment Application Date Status EDMS Description Influence pow ering tests for 7 TeV?
39 QN-ELQA-TT893-RCD.A56B2-RCS.A56B1-0011204694RCD.A56B2RCS.A56B1 12-Mar-12 Initiated
During X-mas break 2011-12, TE/CRG noticed that the warm temperature sensor (TT893) reading of current leads #42 and #43 of DFBAK.5L6 could be swapped.Further diagnostic is needed.TE/CRG (Nicolas Vauthier) notified ELQA team (Giorgio D'Angelo) that their diagnostic was performing by overcooling lead #42, and was actually TT893 (warm temperature sensor) of lead#43 that got colder. Similar operation was performed on the other side: overcooling lead #43, and was actually TT893 (warm temperature sensor) of lead#42 that got colder. The cold temperature sensor (TT891) behaved normally on both cases.On 12/03/2012, Elqa team performed a local diagnostic between the current leads themselves and the output of the P roximity Equipment (C50s connector feeding TE/CRG conditioner cards)Finally, the inversion between the two warm temperature sensors was confirmed to be inside the P roximity Equipment, most probably at the level of the straps routing the temperature sensors from the backplane of the module, to the C50 connectors.Correcting the error inside the module of the PE is a delicate intervention that would require a qualification of the three circuits (RCD.A56B2, RCS.A56B1 and RCS.A56B2) affected by this module. Since the LHC machine would restart soon, ELQA team decided to correct the temperature sensor assignment at the input of the P E, swapping the connectors C81-1-U and C83-1-L.This NC should remain “Initiated” for traceability purpose until LS1, when the cabling will be restored to the planed state.
No: temporary solution is fine. Final correction of cabling
to be done during LS1
No 6-7 EDMS Circuit Equipment Application Date Status EDMS Description Influence pow ering tests for 7 TeV?
31 QN-ELQA-TP4E-IRC-RQ4.R6-001 1166773 RQ4.R6 IRC 20-Oct-11 Initiated
During machine operation, following heavy beam losses, magnet RQ4.R6 quenched (03/10/2011) with firing of the quench heaters. At the same moment, the voltage tap EE11 of the current lead n°1 got open and remained in this state for several hours. It came back after disconnection and reconnection of the 16 pins Fischer connector on top of the current lead during the diagnostic tests. There is then 2 possibilities either a bad contact inside the current lead or a bad contact inside the so called "Cable Segment" CS cable routing the current leads voltage taps to the "P roximity Equipment" P E crate. During next TS °5 (07/11 to 11/11/2011) ELQA will make some further investigation and measure precisely the contact resistances of all voltage taps to better understand what happened. For additional safety, we shall replace the CS cable to exclude this possibility in case the problem reoccurs.
No
H.F. QH issue, magnet will be replaced during LS1.
Warm temp sensor of C.L. is swapped. Temporarily corrected.
Final correction during LS1.
Vtap of C.L. lost on Nov.2011. Cable segment replaced as precaution.
Pending ELQA NCs affecting powering in S2-3; 3-4; 4-5, 5-6: 6-7
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
No 7-8 EDMS Circuit Equipment Application Date Status EDMS Description Inf luence pow ering tests for 7 TeV?
10 QN-ELQA-TP4D-ORC-MCBCHS5.L8B1-001831927 MCBCHS5.L8B1 S4_606 ORC 28-Mar-07 Under w ay Circuit MCBCHS5.L8B1 shows high resistance (around 22 mohm)on the cold side at 4.5 K.
Yes: circuit condemned, replace
by w arm magnet. Q5L8 w ill be
exchanged during LS1
53 QN-ELQA-DOC-C-RCBH31.R7B1.001 1017094 RCBH31.R7B1 ICC 26-Aug-09 Initiated
The Hi current lead resistance (DFLDS.31R7.2) is too high (1.14e-3 Ohm). TE/MSC intervention required. Test repeated after TE/MSC-SCD intervention.The current leads resistance are now OK, but coil seems to be too resistive (about 1 mOhm).Further diagnostic is required by ELQA team.Additional measurements confirm that the coil (below cold Vtap of current leads) has a resistance of 1.1 mOhm (see file attached to NC).The resistance seems to be stable with current and time.Up to MP 3 to state whether to power this circuit or not.After intervention of TE/MSC, the current lead resistance is correct. However the cold part is showing a 1mohms resistance. This measurement was repeated 3 times giving the same result. Note that it is not because of the cooling as the neighboring magnet is sound. This magnet is NOT released for powering.This circuit is condemned at the power converter side.
Yes: cold part of circuit too resistive.
This circuit is condemned at the pow er converter
side.
64 QN-ELQA-TP4E-HVQ-MBB.A78-002 1060444 RB.A78 MB_1007 HVQ 01-Feb-10 I nitiated
After the 2010 nQP S refurbishment campaign, while qualifying the dipole line MBB (Lead#5) with nQP S cabling installed, a breakdown appeared at 1900V (01/02/2010).After disconnecting warm instrumentation (both P E), nQP S and "old QP S", the default was still present at about 1.7 to 1.9kV.ELQA Team performed diagnostic (02/02/2010), and localized the defect at the level of magnet B30R7 (MBBR 1007).In order to ensure the instrumentation integrity, M IC/C test was successfully performed on this magnet. Then in order to exclude a weakness in the warm part of magnet instrumentation, the IFS box was unsoldered and removed (03/02/2010). During this removal, two "pastilles" (nb 33;EE111 and nb 36;EE931) of the IFS board were detached.The HV test was repeated and failed at about 1.7kV (fault confirmed in the cold part).The same IFS box was remounted (because of the detached pastilles, a wire replaced the P CB track between feedthrough #33 and EE111). The M IC/C test was successfully repeated afterwards.According to TE/MP E decision, the voltage of the qualification for this line is lowered to 1600V (enough for 3.3TeV run).Then, the HV qualification of RB line MBB (Lead #5), with "old QP S" and nQP S connected was successfully completed by ELQA team at 1600V (04/02/2010).Nevertheless, this is considered as a temporary intermediate step to the nominal qualification at 1900V. Therefore this NC will remain initiated until this magnet is repaired or replaced, and the nominal qualification is completed.
No, Magnet w ill be replaced during LS1
66 QN-ELQA-TP4E-TT891-RQTL9.R7B1.0011160454 RQTL9.R7B1 Cryo 29-Aug-11 Initiated
The TT891 cold temperature sensor read-out (Channel: DANB05_07R7_TT891A) was lost 8 times on current lead DFLBS.7R7.5 of circuit RQTL9.R7B1 on DFBAN.R7 since J une 2009. The problem is due to a bad contact in the measuring chain but is difficult to localise as the read-out sometimes remain stable for weeks or months before re-occurring and also because we didn’t succeed in reproducing the error during any of our interventions!After changing the cryogenic electronics, swapping the cryogenic cable between the P E and the cryogenic rack standing in RR77, we know that the problem is due either to the sensor itself or the cable segment routing the sensor to the P E or the ribbon inside the P E (link between the P CB and the C50 connector). On 29/08/2011, we decided to switch to the spare temperature sensor. This NC should remain open for at least a year to see if the problem is solved.
No, temperature reading is reliable since September
2011
120A corrector of Q5L8 replaced by warm magnet. Initial corrector condemned. Q5L8 will be replaced during LS1
60A corrector of Q31.R7 too resistive in the cold part. Circuit is not mandatory, and condemned.
Magnet B30R7 (MBBR1007) has HV vs GND issue (1.6kV instead of 1.9kV).
Satisfactory for 4TeV equivalent current. Magnet will be replaced during LS1
Spurious lost of cold temperature reading. Stable since September 2011.
Pending ELQA NCs affecting powering in S78
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
No 8-1 EDMS Circuit Equipment Application Date Status EDMS Description Inf luence pow ering tests for 7 TeV?
39 QN-ELQA-TP4E-ICC-RCOSX3.L1-001 948545 RCOSX3.L1 ICC 12-Aug-08 Initiated
During ICC measurement, coil seems too be resistive (about 1.1 e-3 Ohm). In agreement with Sandor Feher, it was decided to keep the circuit as it is since there is nothing we can do. This magnet should be followed during the first steps of powering. This NC should be closed once the powering step is successfully achieved.
YES, the circuit is open below the cold vtaps of the 120 A current leads. This
circuit is isolated from ground and from the
other circuits.
46 QN-ELQA-TP4E-ICC-RCO.A81B2-001 955048 RCO.A81B2 ICC 27-Aug-08 Initiated
CL1, CL2 and coil resistance too high (measured 05/06/08). Origin to be investigated. To be checked with cryo. NC initiated.Since this circuit is not needed for the 1st run of LHC at 5Tev, HCC decided to postpone investigation due to time constrain.Diagnostics performed on 26th of March 2009, shows that this circuit is open between position B12L1 and B11L1.This circuit cannot be used until it is repaired (need to warm up the sector and open the interconnections).
YES, diagnostics performed on 26th of March 2009, show s
that this circuit is open betw een
position B12L1 and B11L1.
This circuit cannot be used until it is
repaired (need to w arm up the sector
and open the interconnections).
120A corrector of IT.L1: Circuit found open in the cold part. Circuit is condemned!
RCO.A81.B2 is open in the cold part. Diagnostic performed on March 2009 shows that this circuit is open between position B12L1 and B11L1. The circuit is condemned and will be repaired during
LS1
Pending ELQA NCs affecting powering in 8-1
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
No 1-2 EDMS HWC phase Circuit Date Status EDMS DescriptionInfluence
powering tests?
1 QN-MPP-I ST-RB.A12-C15R1-001 947913 Cold RB.A12 8-Aug-08 Closed with warnings
The I ST test performed by the QPS team failed during the discharge of the quench heater YT111 of the magnet 2395 at C.15R1. The QH circuit has been found open below the
No, Magnet w ill be replaced during LS1
2 QN-MPP-I ST-RB.A12-C32R1-001 947915 Cold RB.A12 8-Aug-08 Closed with warnings
The I ST test performed by the QPS team failed during the discharge of the quench heater YT111 of the magnet 1372 at C.32R1. The QH circuit has been found open below the
No, Magnet w ill be replaced during LS1
No 2-3 EDMS HWC phase Circuit Date Status EDMS Description
1 QN-MPP-I ST-RB.A23-A21L3-001 942550 Cold RB.A23 10-J ul-08 Closed with warnings
During I ST test, QPS team found abnormal shape during the discharge of quench heaters power supply on magnet A21L3 (MBAL3708). QH YT121 was found broken.
No, Magnet w ill be replaced during LS1
No 3-4 EDMS HWC phase Circuit Date Status EDMS
No 4-5 EDMS HWC phase Circuit Date Status EDMS Description
4 QN-MPP-I ST-RB.A45-C17R4-001 961338 Cold RB.A45 29-Aug-08 Closed with warnings
During I ST test, QPS team found abnormal shape during the discharge of quench heaters power supply on magnet C17R4 (MBBL2214). QH YT211 resistance is high (14.5Ohm
No 5-6 EDMS HWC phase Circuit Date Status EDMS Description
No 6-7 EDMS HWC phase Circuit Date Status EDMS Description
No 7-8 EDMS HWC phase Circuit Date Status EDMS Description
1 QN-MPP-I ST-RB.A78-B21L8-001 925045 Cold RB.A78 7-May-08 Closed with warnings
During I ST test, QPS team found abnormal shape during the discharge of quench heaters power supply on magnet B21L8 (MBBR2007).
No, Magnet w ill be replaced during LS1
3 Low Cold Performance RCO.A78B2_PCS1029807 Cold/ PCS RCO.A78.B2 1-Oct-09 InitiatedPCS test failed at 55A during 2008 hardware commissioning campaign10th of J une 2008, PCS test failed at 55A (2 quenches) ;Same on 18th of August 2008
Yes, splice investigation to be
performed.
No 8-1 EDMS HWC phase Circuit Date Status EDMS Description Description
Quench Heaters issues, already mentioned above. Those magnets will be replaced during LS1
RCO.A78B2: Low quench performance: The circuit "quenched" always (three times) while ramping up the current starting from 55 A (so not on flat top as in some comments). It
may be in a magnet or in the busbar. Splice issue?? To be diagnosed.
Other NCs reported by MP3 with ELQA actions:
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
Summary of NCs limiting powering before LS1Circuit Magnet Problem Input EDMS Sector To be
changedRemarks Limitation?
RQX.R1 LQXAA.1R1 QH insulation to GND ELQA 1017174 12 No
Magnet protection revised for 7TeV, new
parameters !NO
RCO.A12B2 H.V. insulation vs RCBCH6.L2B2 ELQA 1193222 12 No Consolidation during
LS1 YES
RCBCH6.L2B2 H.V. insulation vs RCO.A12B2 ELQA 1195151 12 No Consolidation during
LS1 NO
RCOX3.L2 RCOX3.L2 Open circuit in cold part ELQA 1203477 12 No Needed for 7TeV? YES
RCOSX3.L2 RCOSX3.L2 Open circuit in cold part ELQA 1203478 12 No Needed for 7TeV? YES
RCSSX3.L2 RCSSX3.L2 Open circuit in cold part ELQA 1203479 12 No Needed for 7TeV? YES
RCBCH5.L8B1 RCBCH5.L8B1 Current lead too resistive ELQA 831927 78 Yes New Q5L8 YES
RCBH31.R7B1 RCBH31.R7B1 Cold part too resistive ELQA 1017094 78 Yes Circuit condemned,
Not needed for 7TeV YES
RCO.A78B2 RCO.A78B2 Cold part too resistive MP3 1029807 78 Yes TO BE INVESTIGATED TO BE INVESTIGATED
RCOSX3.L1 RCOSX3.L1 Open circuit in cold part ELQA 948545 81 No Needed for 7TeV? YES
RCO.A81B2 MB.B12L1Open circuit in
cold part, between B12L1
and B11L1ELQA 955048 81 No Consolidation during
LS1 YES
List of pending ELQA NCs
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
23
NCs treatment resources…
• ELQA NCs - resources?o Manpower: ELQA CERN Staff + Help from HNINP collaborator
• ELQA NCs - When?o During powering test phase, before “Standard ELQA campaign”:
February 11th to 27th 2013
MPE
Wor
ksho
p fo
r LS1
/ 2
2 &
23
Nov
. 201
2, G
. D’A
ngel
o TE
/MPE
-EE
24
Thank you!