1. Preliminary Studies of the Electric Power Distribution for CLIC
CLIC Meeting
May 2009
Preliminary Studies
of the Electric Power Distribution for CLIC
Cezary JACH (EN/EL)
1. TS Workshop, Archamps 2004

2. Technical Studies for the Electric Power Distribution for CLIC
CLIC Meeting
May 2009
Technical Studies for the
Electric Power Distribution for CLIC
Power balance
Layout
Variants of the power distribution system
Next steps
1. TS Workshop, Archamps 2004 2

3. 3 TeV Power Requirements
System
0.5 TeV Power [MW]
3 TeV Power [MW]
Main Beam Magnets
11.1
25.8
Main Beam Injector RF
15.3
Drive Beam Magnets
14.1
46.7
Drive Beam Linac RF
61.0
263.3
Others
27.4
64.0
Total
129.3
415.1

4. Total consumption of active power = 415 MW
Power Requirements
Total consumption of active power = 415 MW
Assuming an average power factor of 0.85, the apparent power will be approximately 500 MVA
80% (400 MVA) of the load located near central complex (CERN Prevessin, new substation)
20% (100 MVA) of the load located outside central complex (remote substations)
1. TS Workshop, Archamps 2004

5. Drive Beam Generation Complex Main Beam Generation Complex
Layout (1)
e+ injector, 2.4 GeV
e- injector
2.4 GeV
CLIC overall layout
3 TeV
48 km
drive beam accelerator
2.37 GeV, 1.0 GHz
1 km
Drive Beam Generation Complex
Main Beam Generation Complex
1. TS Workshop, Archamps 2004 5

6. Layout (2) M S R S R S R S R S R S R S R S R S R S R S
4.9 km
8.7 km
4.9 km
48 km
MS = Master Substation
RS = Remote Substation
1. TS Workshop, Archamps 2004 6

7. CERN, existing installations 18 kV loop
Variant 1 – 400/18 kV Main Substation, 18 kV Remote Substations, 18 kV Distribution – 18 kV Utility Voltage
400 kV RTE
European Network
400 kV station Bois Tollot
CLIC 400 kV
6x 400/18 kV, 100 MVA
CERN, existing installations
18 kV loop
New installations for CLIC
1. TS Workshop, Archamps 2004 7

8. CERN, existing installations 66 kV loop
Variant 1a – 400/66/18 kV Main Substation, 66/18 kV Remote Substations, 66 kV distribution, 18 kV Utility Voltage
400 kV RTE
European Network
400 kV station Bois Tollot
CLIC 400 kV
5x400/18 kV, 100 MVA
2x400/66 kV, 100 MVA
10x66/18 kV, 20 MVA
CERN, existing installations
66 kV loop
New installations for CLIC
1. TS Workshop, Archamps 2004 8

9. CERN, existing installations
Variant 2 – 400/66/18 kV Main Substation, 66/18 kV Remote Substations, 66 kV Distribution, 18 kV Utility Voltage
400 kV RTE
European Network
400 kV station Bois Tollot
CLIC 400 kV
6x400/66 kV, 100 MVA
5x66/18 kV, 100 MVA
10x66/18 kV, 20 MVA
66 kV
CERN, existing installations
66 kV loop
New installations for CLIC
1. TS Workshop, Archamps 2004 9

10. CERN, existing installations
Variant 2a – 400/66/18 kV Main Substation, 66/18 kV Remote Substations, 18 kV Distribution, 18 kV Utility Voltage
400 kV RTE
European Network
400 kV station Bois Tollot
CLIC 400 kV
6x400/66 kV, 100 MVA
5x66/18 kV, 100 MVA
2x66/18 kV, 100 MVA
66 kV
CERN, existing installations
66 kV
New installations for CLIC
18 kV loops
1. TS Workshop, Archamps 2004 10

11. CERN, existing installations 36 kV loop
Variant 3 – 400/36 kV Main Substation, 36 kV Remote Substations, 36 kV Distribution, 36 kV Utility Voltage
400 kV RTE
European Network
400 kV station Bois Tollot
CLIC 400 kV
6x400/36 kV, 100 MVA
CERN, existing installations
36 kV loop
New installations for CLIC
1. TS Workshop, Archamps 2004 11

12. Summary (Substations)
Var.
Voltages
Substation Transformers 1
400 kV/18 kV
6 x 400/18 kV, 100 MVA 1a
400 kV/66 kV /18 kV
2 x 400/66 kV, 100 MVA 10 x 66/18 kV, 20 MVA 2
400 kV/66 kV/18 kV
6 x 400/66 kV, 100 MVA
5x 66/18 kV, 100 MVA x 66/18 kV, 20 MVA 2a
5 x 66/18 kV, 100 MVA 2 x 66/18 kV, 100 MVA 3
400 kV 36 kV
6x 400/36 kV, 100 MVA
1. TS Workshop, Archamps 2004 12

13. CLIC 400 kV / 36 kV Main Substation
400 kV Grid, Scc = MVA
100 MVA
400 kV/36 kV
Remote loads
Remote loads
Local loads
Local loads

14. CLIC 36 kV Remote Substation (Shaft Area)
Machine Network
Service Network
36 kV Busbar
x V
400 V
400 V
x V
Surface
Underground
(Alcove)
400 V
400 V
(Alcove)
Tunnel

15. CLIC 36 kV Double Loop (End Section)
Machine Network
Service Network

16. Connection to 400 kV Grid via new transmission line?
Major Cost Drivers
Power requirements
Connection to 400 kV Grid via new transmission line?
Centrally located main substation (distribution voltages, number of transformers, switchgear, protection, monitoring, etc.)
Remote substations (transformers, switchgear and 400 V panel-boards)
Cables in the tunnel (?) using loop configuration
Transformers (?), panel-boards in tunnel
Emergency generators, cabling, transformers, etc. associated with safety system
1. TS Workshop, Archamps 2004 16

17. Preliminary design (chronologically)
What’s Next?
Preliminary design (chronologically)
Loads (voltage, apparent power, power factor, harmonics, locations, etc.)
Network topology (choice of variants, machine and service networks, redundancy, safety networks, underground facilities, etc.)
Main substation preliminary design
Remote substations preliminary design
System simulations
Cost estimate
1. TS Workshop, Archamps 2004 17

18. Preliminary Design Report Cost Estimate
What’s Next?
June 2010
Preliminary Design Report
Cost Estimate
Available Resources - discussion
1. TS Workshop, Archamps 2004 18