1. A second Thyristor Controlled Static Var Compensator for SPS
TS Workshop, Archamps
24. –
A second
Thyristor Controlled Static Var Compensator for SPS
Karsten KAHLE, TS-EL
1. TS Workshop, Archamps 2004

2. A second Thyristor Controlled Static Var Compensator for SPS
TS Workshop, Archamps
24. –
A second
Thyristor Controlled Static Var Compensator for SPS
1. Introduction
2. Purpose of SVC
3. SPS Electrical Network
4. Project description
5. Planning / Budget
6. Conclusions
Karsten KAHLE, TS-EL
1. TS Workshop, Archamps 2004

3. 1. Introduction History: Renovation of BE substation (2001)
Installation of new SVC2 (2001)
now: SVC3 (1976) is obsolete and needs replacement
SVC3:
- Existing SVC3 is based on Saturated Reactor technology
new SVC3 will be Thyristor Controlled Reactor (TCR)
company ABB Sweden (contractual Option for second TCR)
Intro.
Purpose
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

4. 1. Introduction Existing installation SVC3 Intro. Purpose Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

5. 1. Introduction Obsolete Saturated Reactor Intro. Purpose Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

6. 1. Introduction Future Thyristor Controlled Reactors Reactors
HV Thyristors
Intro.
Purpose
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

7. 2. Purpose of SVC Voltage stabilization 18 kV (400kV)
* disturbances due to pulsating load
Harmonic filtering
* harmonics generated by power converters
Compensation of Reactive Power taken from 400 kV grid
* reactive power consumed by power converters / magnets
Purpose
Intro.
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

8. 2. Purpose of SVC without SVC with SVC
Voltage variation 18 kV: % %
Harmonics (>50 Hertz): % %
Reactive Power variation: Mvar Mvar
Without SVC
- SPS cannot operate
- CERN would disturb 400 kV European Network
Purpose
Intro.
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

9. 3. SPS Electrical Network 2007
400 kV T1 T2 T3
18 kV
SPS
SPS
SVC3
SVC1
SVC2
Year 1974
Year 2001
(Year 1976)
Year 2006
Network
Intro.
Purpose
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

10. 3. SPS Electrical Network 2008
400 kV T1 T2 T3
18 kV
SPS
SPS
SVC3
SVC1
SVC2
SVC1
SVC3
Year 1974
Year 2001
Year 2006
Intro.
Purpose
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

11. 4. Project description - dismantling of Saturated Reactor
dismantling of building, modif. concrete platform (CE)
new pre-fabricated building (ABB)
Thyristor Controlled Reactors (ABB)
cooling water supply for thyristors (CV)
new outdoor filter installation (TS-EL)
controls, protection, optical fibres etc. (TS-EL)
Project
Intro.
Purpose
Network
Planning
Conclusions
1. TS Workshop, Archamps 2004

12. 4. Project description Dismantling of reactor building Project Intro.
Purpose
Network
Planning
Conclusions
1. TS Workshop, Archamps 2004

13. 4. Project description filter capacitors
Recuperation of Capacitors (value 1 MCHF)
and Civil Engineering (500 kCHF)
Intro.
Purpose
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

14. 4. Project description busbars filter resistors filter reactors
Recuperation of busbar system (value 200 kCHF)
busbars
filter resistors
filter reactors
Intro.
Purpose
Network
Project
Planning
Conclusions
1. TS Workshop, Archamps 2004

15. Budget for SVC Project: 6 Mio.CHF
5. Planning / Budget
Q1 / 2005 Start of project
Q1 / 2007 SVC3 ready for SPS operation
Q4 / 2007 Modification of BE substation (inversion)
Q1 / 2008 SVC’s and BE substation ready
??? Dismantling of second Saturated Reactor
Budget for SVC Project: 6 Mio.CHF
Planning
Conclusions
Intro.
Purpose
Network
Project
1. TS Workshop, Archamps 2004

16. 6. Conclusions 2007: SPS Network Ready for LHC Era
First new SVC and BE substation for SPS in 2001
Now: second SVC, ready for 2007 (identical Option, ABB)
replacement of obsolete Saturated Reactor
then: 2 identical modern SVC’s for SPS
SVC2 and SVC3: proven technology, industrial solution
high reliability, fast repair
2007: SPS Network Ready for LHC Era
Conclusions
Planning
Intro.
Purpose
Network
Project

17. Questions ? Thank you. Conclusions Planning Intro. Purpose Network
Project
1. TS Workshop, Archamps 2004