The HiLumi LHC Design Study is included in the High Luminosity LHC project and is partly funded by the European Commission within the Framework Programme 7 Capacities Specific Programme, Grant Agreement HL_LHC, WP17.2, Electrical network – preliminary study and layouts Electrical Network Status of the preliminary study based on today’s users needs (not includes users cabling) G. Cumer, N. Dos Santos, JC. Guillaume, P. Orlandi, D. Morvan 9 July 2015 – EDMS

2 Presentation content: 1.Users needs for P1 and P5 (today!) 2.HL-LHC needs, 66 kV, 18 kV and 400/230 V network 3.3D integration in surface and underground buildings 4.Surface sites 5.Conclusions HL-LHC Technical Infrastructure Meeting - N. Dos Santos

3 1-Users needs for P1 and P5 (today!) HL-LHC Technical Infrastructure Meeting - N. Dos Santos GroupBuildings Power requested [MW] EquipmentsSource TE-EPCUR2 x x 43 converters (400 VAC only) 2 tfos 18/0.4 kV of 3 MVA in UR and UPS ?? kVA for PLC TE-CRG SHM4.6Warm compr. + auxiliaries 1 tfo 18/3.3 kV of 8 MVA outside SHM 1 tfo 3.3/0.4 kV of 0.4 MVA SDH0.05LV swb and UPS ?? kVA for controls US0.1Cold Box LV switch board for machine auxiliaries UPS ?? kVA for controls BE-RFUS - UR 2 x (UPS) 18 kVAC or 400 VAC to be defined 2 feeders 18 kV or several LV feeders + UPS for controls EN-CVall??Machine Net., Diesel EN-HE Surface Underg CranesGeneral services net. EN-ELall~0.5-1Lights, sockets, …General services and safety net. OTHERS????? Total Machine= 15.7 MW ( missing CV and «others» )Total GS + Safety ~ 1 MW (tbc)

4 1-Users needs for P1 and P5 (today!) HL-LHC Technical Infrastructure Meeting - N. Dos Santos Main users (EPC, CRG, RF, HE) power needs known Missing inputs Simultaneity factor of equipment work (power consumption optimization) EN-CV needs (main user) LHC4 racks for all users Others?? Please fill the table requirements for infra via this link (HL-LHC projet)link

5 1.HL-LHC needs and 66 kV, 18 kV network HL-LHC Technical Infrastructure Meeting - N. Dos Santos ~ 16 MW on Machine Network LHC1 ( Tfo EHT102/1E _ 70MVA) ~ 16 MW on Machine Network LHC5 ( Tfo EHT102/6E _ 38MVA) ~ 2 MW on loop General Services for LHC1 and LHC5 new infrastructure ~ xx MW on Machine Network LHC4 ( Tfo EHT102/4E _ 38MVA) ~ xx MW on loop General Services and machine for other points The 66 and 18 kV transport networks seem capable of supplying the HL-LHC increased load at first glance The load projections for 2030 are foreseen to be updated with the users (last load review NET2025 – EDMS and done in 2012)

kV single-line diagram LHC1 LHC1 today HL-LHC futur Surface Underg.

7 2 – 400/230 VAC single-line diagram LHC1/5 Surface Underg. Machine Net General Serv Net Safety Net

kV single-line diagram LHC5 LHC5 today HL-LHC futur Surface Underg. New diesel generator needed only at P5

D integration in surface and underground buildings HL-LHC Technical Infrastructure Meeting - N. Dos Santos Courtesy: S. Maridor (not last updated view) LHC1

D integration in surface and underground buildings EL equipment's identified today for US17: 3 tfos 18/.4 kV – RF, CV and others 3 Main Swb (3/5kA) 1 Distrib Swb (1.2kA) + 1 Swb (125A) – General services 2 UPS of ?? kVA and 10 min batt + swb – Cryo 1 safe room (for ALL safety equip), EL equip.: 1 Swb (1.2kA) + 2 Swb (125A) Fireproof cabling Cables passages to equip only from bottom (raised floor needed) General services: Ligthing (normal, safety) Power sockets More details see link here (WP17.2 Sharepoint)here HL-LHC Technical Infrastructure Meeting - N. Dos Santos Courtesy: S. Maridor (not last updated view) LHC1 US17

D integration in surface and underground buildings EL equipment's identified today for UR15: TE-EPC: 2 tfos 3 MVA-18/.4 kV + 2 Main Swb (5kA) – for main converters Type Distribution Swb 400VAC – for others converters Type Position of tfos + main Swb near converters in UR15 to avoid cable lengths BE-RF 1 tfo 3 MVA-18/.4 kV + 1 Main Swb (5kA) or 1 18 kV supply and 1 Swb (400A) – tbd according RF needs Position of tfos + main Swb near UA galleries in UR15 and US17 to avoid cable lengths 2 EL stations inside UR15 with: 2 UPS of ?? kVA and 10 min batt + swb for machine equips 2 Swb (160A)for GS and UPS distribution Cables passages to equip only from bottom (raised floor needed) 4 cables trays needed 1 for Safety, 2 for LV 400VAC and 1 for HV 18 kV General services: Ligthing (normal, safety) Power sockets More details see link here (WP17.2 Sharepoint)here HL-LHC Technical Infrastructure Meeting - N. Dos Santos Courtesy: S. Maridor (not last updated view) LHC1 UR15

D integration objects EL 3D models defined today: SE17 = SE57 – 300 m2 HL-LHC Technical Infrastructure Meeting - N. Dos Santos

D integration objects Transformers 18/.4 kV: 2 MVA and 3 MVA Transformer 18/.4 kV 3 MVA and 5 kA 400 VAC Switcboard HL-LHC Technical Infrastructure Meeting - N. Dos Santos

D integration objects Distribution Switchboard 400 VAC for converters, RF, EL distribution 2 EL station in UR15 with 2 Swb 400 VAC and 2 UPS + batt HL-LHC Technical Infrastructure Meeting - N. Dos Santos

Surface buildings – LHC5 HL-LHC Technical Infrastructure Meeting - N. Dos Santos Courtesy: M. Manfredi UR15 No conflict with existing EL buried cables After check on site, OK for connection to existing galleries and SEM/SR5 Space needed for new container of ~22 m2, near SE57 (new diesel generator)

Surface buildings – LHC1 HL-LHC Technical Infrastructure Meeting - N. Dos Santos Courtesy: M. Manfredi (not last update) UR15 Integration of new buildings difficult due to huge amont of buried network (cables and fibers) 1.5 m is safety distance to HV cables when digging – risk of accelerators stop if done during RUN2 Cables and fibers displacement only possible during LS2 (IF REALLY NECESSARY!!)

Conclusions HL-LHC Technical Infrastructure Meeting - N. Dos Santos Everything in this presentation is the result of preliminary study The HL-LHC project should centralise the users requirements (for EL network and also for cabling) HL-LHC power needs of «others» users and safety needs to be identified (all LHC sites) and also Experiments power increases The load projections for 2030 are foreseen to be updated with the users (last load review NET2025 – EDMS and done in 2012)

The HiLumi LHC Design Study is included in the High Luminosity LHC project and is partly funded by the European Commission within the Framework Programme 7 Capacities Specific Programme, Grant Agreement

19 Backup slides HL-LHC Technical Infrastructure Meeting - N. Dos Santos

Surface buildings – LHC1 HL-LHC Technical Infrastructure Meeting - N. Dos Santos UR15 Need of space ≈180m2 for a new tfo 66/18 kV – 70 MVA – project HV network extension project 2025 – EDMS Under study