ILC International Linear Collider Asian Region Electrical Design H

ILC（International Linear Collider） Asian Region Electrical Design H. Hashiguchi, Nikken Sekkei, Co. Ltd. , A. Enomoto, KEK ILC Mechanical & Electrical Review and CFS Baseline Technical Review 2012. 3. 21 -23, CERN 1

Contents ①　Electrical Power System ②　Electrical Grounding System ③　Communication Network System 2

Electrical Power System Design Concepts ・Reliability　　 ・Efficiency ・Cost　　　　　　　 3

Electrical Power System Site Specific Issues ・HLRF layout: RDR-like ・Local HV lines: 150 – 500 k. V ・Site MV: 66 k. V ・Area MV: 6. 6 k. V Strawman Baseline for Technical Design Phase 2 (2010 -2012) SB 2009 Re-baselining 4

Electrical Power System Load Requirements (Full Power Op. , ref. Sep. 2011) Requirement（for　500 Ge. V）　 5

Electrical Power System Load Requirements (w. Power Factor) Power Factor Assumption 6

Electrical Power System Load Requirements (Capacity) Electric Power Capacity 7

Electrical Power System Load Requirements +about 60 MVA margin (Capacity) Total 300 MVA　including margin　 8

Electrical Power System Redundancy 275 k. V 　　 Receiving Equipment is Available　For　1 Te. V　system (Up to 500 MVA) 　　　　　　　 (Surface-ground Main Substation) Transformer Space For　1 Te. V　system　　　　 VCT 275 KV/66 KV （in future） 275 KV/66 KV 100 MVA ① 100 MVA （in future） ② 275 KV/66 KV 100 MVA AH 2 AH 3 AH 4 275 KV/66 K V ③ 100 MVA EH AH 5 AH 6 AH 7 +1 275 KV/66 KV 100 MVA AH 2 AH 3 AH 4 EH 275 KV/66 KV 100 MVA AH 5 AH 6 AH 7 N（3）+1　transformer　component　 for　500 Ge. V　system 9

Electrical Power System Redundancy (Main Substation, cnt. ) 2 　　Components of Distribution panel 　 　　　　　　　 VCT 275 KV/66 KV （in future） 100 MVA （in future） 275 KV/66 KV AH 2 275 KV/66 KV 100 MVA AH 3 AH 4 275 KV/66 KV EH AH 5 AH 6 AH 7 275 KV/66 KV B AH 2 275 KV/66 KV 100 MVA AH 3 AH 4 EH AH 5 AH 6 AH 7 10

Electrical Power System Redundancy (Site Power Distribution) 66 KV　power　distribution Main　line　diagram 　　　　　　　　 From 2 Components of Main　Substation A Distribution panel 　　　　　　 B to Each 66 k. V　substation AH 2 AH 3 AH 4 EH AH 5 AH 6 AH 7 11

Electrical Power System Redundancy (Area 66/6. 6 k. V Transformers) 2 transformers(30 MVA ) at Each Hall 12

Electrical Power System Spare 66/6. 6 k. V Transformer Keep one Stand-by Transformer(30 MVA) at center warehouse on the ground 13

Electrical Power System 66/6. 6 k. V Substations (@7 underground halls) One line diagram of 66 KV　substation　 with　generator Each substatiosn installed in access halls and an experimental hall 66 KV/6 KV 30 MVA 6％ VCB For　RF space VCB × 12 × 8 × 10 500 Kvar 6％ 500 Kvar × 10 Capacitor for conventional load 14 power factor improvement

Electrical Power System 66/6. 6 k. V Substations (@7 underground halls, cnt. ) One line diagram of 66 KV　 substation　with　generator Emergency Generator On the ground Emergency　load　 assumption　　　 66 KV/6 KV 30 MVA Drainage pump， smoke　extraction　fan， and so forth 66 KV/6 KV 30 MVA 6. 6 k. V One main line branches about 10 RF 6％ VCB For　RF space VCB × 12 × 8 × 10 500 Kvar Helium　gas　extraction　 system　also　prefers　to　 add　emergency　load 6％ 500 Kvar × 10 6. 6 k. V One main line branches 15 about 4 local substation

Electrical Power System 66/6. 6 k. V Substations Cooling Water System R 3 72000 8000 E 00 G 45000 35500 8000 A 15000 8000 10000 A 10000 33500 00 Pump 10000 8000 G B LEVEL C 66 k. V Substation 15000 56000 10000 H H 91600 (@7 underground halls, cnt. ) 15000 41300 Electrical Facilities 40000 RF Side K 15000 E Cryomodule Side K Floor Plan 20000 16

Electrical Power System 66/6. 6 k. V Substations (@7 underground halls, cnt. ) 20000 Maintenance space duct 5000 SC F F A’ SC 6. 6 KV/200 V Battery Monitoring system A　－　A ’ section 30 M TR 30000 6000 30 M TR A GIS Maintenance space 5000 6000 4500 10000 GIS Battery Floor　layout　　plan 17

Electrical Power System 6. 6 k. V Local Substations Local　substation （each　4　RF） 1φ3 W 6. 6 KV /200 -100 V 100 KVA (@Service tunnel) Power　supply　for　RF （each　1　RF） 1φ3 W 6. 6 KV /200 -100 V 100 KVA 3φ4 W 6. 6 KV /400 V 200 KVA capacitor Capacitor for RF power factor improvement Harmonic　filter For　RF 150 KVA Harmonic filter for RF 18

Electrical Power System ML Tunnel Section 6. 6 k. Vcables, 200 V cables Cables for communications Plumbing for heat and cool system 66 k. V cables 6000 4402 5500 000 R 7 400 Maintenance space 1098 R 4000 Mesh grounding 1500 3300 3500 4200 11000 11600 12000 19

Electrical Power System ML Tunnel Floor A Service Tunnel 1600 1000 1500 Beam Tunnel Maintenance space 38000 20

Electrical Power System ML Tunnel Floor (Detail 1) A Section Layout R 4000 1500 R 7 1600 Rack for RF (Each I RF，with Harmonic filter) 1100 Kｌystron F C U 1067 1251 800 Power supply for RF Rack for RF 800 1500 1600 1000 5000 modulator 4270 Pulse generator 305 1341 432 3385 Maintenance space 21 000

Electrical Power System ML Tunnel Floor (Detail 2) Section Layout R 4000 R 7 000 15000 A 3385 1100 1000 610 Pump 800 1600 800 Crystron 1600 Panel for grounding Pump Local substation (each 4 RF) 1100 914 1100 Control Panel FCU 4000 Maintenance space 38000 22

Electrical Power System ML Tunnel Elevation 38000 A 23

Electrical Power System ML Tunnel Elevation (Detail 1) FCU Rack for RF 914 modulator 2007 Power supply for RF (Each I RF，with Harmonic filter) 914 2100 914 Rack for RF Pulse generator Crystron 38000 A 24

Electrical Power System ML Tunnel Elevation (Detail 2) FCU 914 914 4000 Beam safety Rack Panel for grounding 2350 Rack for RF 2324 Rack for RF Pulse generator 2100 Pump Local substation (each 4 RF) Crystron A 38000 25

Grounding System Purpose　 ・Avoid influences of electric leakage from other machines　　 ・Produce signal base for information systems 　・Thunder lightning protection 26

Electrical Grounding System Typical　Model of　Tunnel Ground System Lightning rod Facilities on the ground Main Panel for Grounding SPD (surge protect device) Grounding for lightning protection AH Main line for grounding Functional Grounding Lightning Protection On the ground Service line Grounding for SPD Flexible for switching grounding line connection Beam tunnel Reduce Grounding Resistance Panel for Grounding （ for each 38 m） Mesh grounding （using arrangement bar） 27

Communication Network System Design Concept ・Reliability of Network for Information System ・Reducing Space by Unified wiring management ・Efficient Network by Unified wiring for Reducing　 Construction Cost　 　　　　　　　 28

Communication Network System Needs for ILC ① Systems　for　Communication　 　　・internet 　　・telephone ・pubulic　address　or　paging ② Systems　for　Lineac control ③ Systems　for Safety 　　・fire　ditection　and　guide 　　・Radiation　safety　management 　④　Systems　for　monitoring 　　・electric　power　system　monitoring 　　・camera　monitoring 　　・air　condition　and　pump　monitoring　　 29

Communication Network System Equipment　 Network infrastructures panel wiring rack 30

Communication Network System Overall network system concept Assumed　systems　based on unified Wiring Networks with back-up can reduce space. 31

Summary ①　Electrical Power System → Electrical Power System is discussed taking account of reliability , efficiency, and cost. → Electrical equipment layout were discussed to determine the cavern size of substations. 　 32

Summary Asia region electrical design ②　Electrical Grounding System 　　→ A grounding system for a hard-rock mountain site was discussed. ③　Communication Network System → Unified and extended network system was proposed taking advantage of sufficiently radiation-shielded “Kamaboko-type” service tunnel. 　 　　　　　　　 33

Appendix 34

ILC ‘Area System’ - Superconducting Electron/Positron Linear Accelerators(4) Ring To Main Linac (RTML) (3) Damping Ring (DR) (5) Main Linac (ML)　 x 560 ~31 km Damping Ring (DR) Expansion to ~50 km e+ Source (for 1 Te. V) e+ Source RTML 　 (2) Positron (e+) Source Beam Delivery System (BDS) e- Main Linac (ML) 　 e+ Main Linac (ML)　 (7) Experimental Hall RTML 　 (1) Electron (e-) Source (6) Beam Delivery System (BDS ) 35

Design Progress from 2005 to 2009 Reference Design Report (RDR) published in 2007. Re-baselining for cost containment undergoing. Baseline Configuration Document BCD (2005) Reference Design Report RDR (2007) Current Baseline Strawman Baseline for Technical Design Phase 2 (2010 -2012) SB 2009 Re-baselining 36

Main Linac (ML) RF Unit in RDR - Twin-tunnel accelerator configuration Service Tunnel AC plug-in power: 150 k. W Output pulse: 120 k. V x 130 A = 15. 6 MW peak, 1. 6 ms, 5 Hz Averaged output power: 124. 8 k. W Modulator Efficiency: 83% Power loss: 25. 2 k. W Input RF power: ~100 W Input DC pulse: 15. 6 MW peak, 1. 6 ms, 5 Hz Output RF pulse: 10 MW peak, 1. 565 ms, 5 Hz Averaged output power: 78. 25 k. W Klystron Efficiency: 65% Power loss: 46. 55 k. W Beam Tunnel Power Loss: ~5. 6 k. W (7%) 37. 956 m e- ML e+ ML Total 282 RF units 278 RF units 560 RF units Field gradient: Energy gain per RF unit : 31. 5 MV/m 850 Me. V (with 22% tuning overhead) 37

ML RF Unit - Distributed RF System (DRFS) 35. 100 m Cooling Water Skid and Common Electricity (Every 4 th Units, 152 m) 1. 6 m (W) ~5. 4 m (L) X (every 4 th units) 2. 438 m (H) 26. 336 m (~70%) 11. 62 m 38

Cryogenic System Configuration in RDR 39

Electrical / Mechanical Requirements - Electricity in RDR - 40

Electricity Distribution - 66 k. V High Voltage Line Along The Site (Asian Regional Plan) Surface Service Tunnel (RDR) / Main Tunnel (SB 2009) 41