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Preliminary Studies
of the Electric Power Distribution for CLIC
Cezary JACH (EN/EL)
CLIC Meeting
May 2009
1. Power balance2. Layout3. Variants of the power distribution system4. Next steps
Technical Studies for the
Electric Power Distribution for CLIC
CLIC Meeting
May 2009
3 TeV Power RequirementsSystem 0.5 TeV Power [MW] 3 TeV Power [MW]
Main Beam Magnets 11.1 25.8
Main Beam Injector RF 15.3 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
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)
Layout (1)
e+ injector, 2.4 GeV
e- injector2.4 GeV
CLIC overall layout3 TeV
48 km
drive beam accelerator2.37 GeV, 1.0 GHz
1 km
drive beam accelerator2.37 GeV, 1.0 GHz
1 km
Drive Beam Generation
Complex
Main Beam Generation
Complex
Layout (2)
M S
RS
RS
RS
RS
RS
RS
RS
RS
RS
RS
8.7 km 4.9 km4.9 km
48 km
MS = Master SubstationRS = Remote Substation
Variant 1 – 400/18 kV Main Substation, 18 kV Remote Substations, 18 kV Distribution – 18 kV Utility Voltage
400 kV RTEEuropean Network
400 kV station Bois Tollot
CERN, existing installations
CLIC 400 kV
6x 400/18 kV, 100 MVA
18 kV loop
New installations for CLIC
Variant 1a – 400/66/18 kV Main Substation, 66/18 kV Remote Substations, 66 kV distribution, 18 kV Utility Voltage
400 kV RTEEuropean Network
400 kV station Bois Tollot
CERN, existing installations
CLIC 400 kV
5x400/18 kV, 100 MVA2x400/66 kV, 100 MVA
10x66/18 kV, 20 MVA66 kV loop
New installations for CLIC
Variant 2 – 400/66/18 kV Main Substation, 66/18 kV Remote Substations, 66 kV Distribution, 18 kV Utility Voltage
400 kV RTEEuropean Network
400 kV station Bois Tollot
CERN, existing installations
CLIC 400 kV
6x400/66 kV, 100 MVA
5x66/18 kV, 100 MVA
10x66/18 kV, 20 MVA
66 kV
New installations for CLIC66 kV loop
Variant 2a – 400/66/18 kV Main Substation, 66/18 kV Remote Substations, 18 kV Distribution, 18 kV Utility Voltage
400 kV RTEEuropean Network
400 kV station Bois Tollot
CERN, existing installations
CLIC 400 kV
6x400/66 kV, 100 MVA
5x66/18 kV, 100 MVA
2x66/18 kV, 100 MVA
66 kV
New installations for CLIC 66 kV
18 kV loops
Variant 3 – 400/36 kV Main Substation, 36 kV Remote Substations, 36 kV Distribution, 36 kV Utility Voltage
400 kV RTEEuropean Network
400 kV station Bois Tollot
CERN, existing installations
CLIC 400 kV
6x400/36 kV, 100 MVA
36 kV loop
New installations for CLIC
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 6 x 400/18 kV, 100 MVA 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 10 x 66/18 kV, 20 MVA
2a 400 kV/66 kV/18 kV 6 x 400/66 kV, 100 MVA 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
CLIC 400 kV / 36 kV Main Substation
100 MVA400 kV/36 kV
Remote loadsRemote loads
Local loads Local loads
400 kV Grid, Scc = 13 000 MVA
CLIC 36 kV Remote Substation(Shaft Area)
Service Network
Surface
36 kV Busbar
Machine Network
400 V
400 V
Underground
400 V
400 V
(Alcove) (Alcove)
Tunnel
x V x V
CLIC 36 kV Double Loop (End Section)
Machine Network
Service Network
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
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
What’s Next?
- June 2010- Preliminary Design Report- Cost Estimate
- Available Resources - discussion
