1. EYETS 2016-2017 Works EN-EL [ FC excluded ]
On behalf on EN-EL

2. EN-EL IMPACTS for the EYETS 2016-2017
Concerning the whole CERN :
Annual test for the Safety networks
10’ power cut of « General Services »
& « Safety » networks at 6:00 am in a working day
Prohibited access in underground
Auto-transfer test
PS – Booster impacted only a week-end on the Meyrin site
All other sites (SPS – LHC – 513 – MEY without PS – Prevessin – ZN…)
repowered without power cut on degraded configuration
during the week-end
Meyrin - LHC1 – LHC18 - BA6 – BA7 Safety network not available only Saturday in working hours !
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

3. EN-EL IMPACTS for the EYETS 2016-2017
On LHC (1/2) :
AUG tests
9 days, 1 day by site on working days – Arcs affected
Prohibited access in underground
Done on compliance equipment on LV switchboard
Replacement of 48Vdc interrupter without LV power cuts
Test of redundancy feeders QPS LHC machine to eliminate non-compliances
RTU replacement on all alcoves
PLC replacement for physics racks for ATLAS (waiting ATLAS approval)
Maintenances 48V, transformers, UPS, and more specifically UPS Cryo LHC
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

4. EN-EL IMPACTS for the EYETS 2016-2017
On LHC (2/2) :
Re-routing cable for HL-LHC
MP7 (LHC General Services 18 kV)
No (or partial) Autotransfer
2 weeks (16-24/01) in degraded mode !!!
General Services + Machine cables from LHC1 to LHC18
1 month (15/02 – 14/03) in degraded mode (8 MVA maxi for LHC18 from BA7) !!!
Not compatible with LHC18 & SPS AUG tests
Modification of 66 kV protection relays
LHC (Machine network)
+ BE9 (General Services for LHC loop)
2 days for each in degraded mode (limitation of power)
Not compatible with LHC AUG tests
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

5. EN-EL IMPACTS for the EYETS 2016-2017
On SPS (1/2) :
AUG tests
7 days on working days
Prohibited access in underground
SPS Consolidation project
UPS system replacement BA3, BB3, BB5 & BA7 (UPS + EOD swichtboard)
48Vdc system replacement BA3, BB3 & BA7
Replacement of the Emergency lighting BA2 & BA4
Replacement of the 3 LV switchboard for BB3 General Services and EPC & RF auxiliaries
Modification on EKD1/K_ 3,3 kV switchboard BA4 & BA5 (safety network) before the EYETS
Replacement on ESD210/B_ 400 V switchboard BK4 & BK5 (safety network)
Prohibited access in underground, AWAKE included
Maintenance UPS, 48V, transformers…
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

6. EN-EL IMPACTS for the EYETS 2016-2017
On SPS (2/2) :
Re-routing cable for HL-LHC
Safety networks for BA6 & BA7
1 month (15/02 – 14/03) in degraded mode (temporary gensets)
Not compatible with SPS AUG tests (overload of Stable network)
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

7. EN-EL IMPACTS for the EYETS 2016-2017
On the North Area and the Prevessin site :
AUG tests
4 days – 1 day by site on working days except for Prevessin
Obsolete 48Vdc chargers replacement for BA80-BA81-BA82
UPS maintenance in BE91 substation, for CCC
CCC protected by the UPS redundancy in BE91
Maintenance UPS, 48V, transformers…
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

8. EN-EL IMPACTS for the EYETS 2016-2017
On Meyrin (1/2) :
AUG tests
4-5 days … during week-ends !
Done on compliance equipment on LV switchboard
Replacement of 48Vdc interrupter without LV power cuts
Replacement MN coil on ORMAZABAL switchboard in ME13, ME15 & ME62
The day of the AUG test ?
Maintenance UPS, 48V, transformers …
Replacement of the 18 kV switchboard in ME16
PS loop open during works - Not compatible with AUG tests
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

9. EN-EL IMPACTS for the EYETS 2016-2017
On Meyrin (2/2) :
Replacement of the 18/0,4 kV transformer near ME50 (b.378)
Power cut of demineralised water production b.378 during 1 day – LHC Impact
Works for PSB-LIU (POPS-B b.245)
De-cabling of 3 old LV switchboard (ERD *25)
Installation and cabling of the 3 new LV switchboard + 1 UPS (EDD1-2*25A + EOD1*25A)
Installation of 1 transformer near b.245
Cabling of 48 Vdc & General Services LV switchboard on b.245
EYETS – Works EN-EL [FC excluded]
On behalf on EN-EL

10. Thank you for your attention !