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Introduction to W7-X Coil Testing at CEA – Saclay, France

Introduction to W7-X Coil Testing at CEA – Saclay, France. G.Croari – Barth seminar 2008. Wendelstein 7–X training seminar. Max-Planck-Institut für Plasmaphysik. WENDELSTEIN 7-X. MC. 1-YKB01. Barth, April 23 - 24, 2008. Outline. Test facility description Coil test procedure

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Introduction to W7-X Coil Testing at CEA – Saclay, France

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  1. Introduction to W7-XCoil Testing at CEA – Saclay, France G.Croari – Barth seminar 2008

  2. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 Outline • Test facility description • Coil test procedure • Conclusion G.Croari irfu / SACM 1/15

  3. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 Outline • Test facility description • Coil test procedure • Conclusion • Cryostats, valve boxes, satellite • Power supply • Pumping system • Cryogenic part (Refrigerator/liquifier) • Data acquisition system G.Croari irfu / SACM 1/15

  4. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 Outline • Test facility description • Coil test procedure • Conclusion • Cryostats, valve boxes, satellite • Power supply • Pumping system • Cryogenic part (Refrigerator/liquifier) • Data acquisition system • Documentation • Incoming Inspection tests • Coils into cryostat • Outgoing check G.Croari irfu / SACM 1/15

  5. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 Outline • Test facility description • Coil test procedure • Conclusion • Cryostats, valve boxes, satellite • Power supply • Pumping system • Cryogenic part (Refrigerator/liquifier) • Data acquisition system • Documentation • Incoming Inspection tests • Coils into cryostat • Outgoing check • My contribution G.Croari irfu / SACM 1/15

  6. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1. Test Facility Description • Cryostats, valve boxes, satellite • Power supply • Pumping system • Cryogenic part (Refrigerator/liquifier) • Data acquisition system G.Croari irfu / SACM 2/15

  7. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.a) Cryostat, Valve boxes, Satellite Cryostat 1 Valve box C 1 Satellite Valve box C 2 Cryostat 2 TestFrames G.Croari irfu / SACM 3/15

  8. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.a) Cryostat, Valve boxes, Satellite Cryostat detail Connections for Coil A NitrogenShield Connections for Coil B G.Croari irfu / SACM 3/15

  9. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.a) Cryostat, Valve boxes, Satellite Valve box detail Valves Current leads G.Croari irfu / SACM 4/15

  10. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.a) Cryostat, Valve boxes, Satellite Valve box detail Safety Valves Cablings Calibration Leak G.Croari irfu / SACM 4/15

  11. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.b) Power Supply Input: 380 Vac 3-phase Simplified schematic Load Transformer Thristors Iout G.Croari irfu / SACM 5/15

  12. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.b) Power Supply • Input: • Max absorption 980 A • Nominal Power 700 KVA • Water cooled • Output: • Max current 25KA • Max Voltage 10V • Regulation: • <+-10 E-4 on inductive Loads • <+-10 E-3 on resistive Loads G.Croari irfu / SACM 5/15

  13. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.c) Pumping System G.Croari irfu / SACM 6/15

  14. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.c) Pumping System Primary system ( 5 E – 3 mbar ) Secondary system ( 1 E – 6mbar ) G.Croari irfu / SACM 6/15

  15. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.d) Cryogenic part: Refrigerator / Liquifier Cold Box Nitrogen Exchanger Heat Exchangers Turbine Cold Helium G.Croari irfu / SACM 7/15

  16. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.d) Cryogenic part: Refrigerator / Liquifier • Specifications of cold part: • Total mass flow rate 46 gr/sec LHe @ 300 K • Refrigerating power = 200W @ 4,2 K • LHe production = 70 Lt / hour 5000 Litres LHe tank G.Croari irfu / SACM 7/15

  17. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.e) Data Acquisition System Coils & Test Facility Coils G.Croari irfu / SACM 8/15

  18. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 1.e) Data Acquisition System G.Croari irfu / SACM 8/15

  19. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2. Coil Test Procedure • Documentation • Incoming Inspection tests • Coils into cryostat • Outgoing check G.Croari irfu / SACM 9/15

  20. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.a) Documentation • Scope and Requirements G.Croari irfu / SACM 10/15

  21. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.a) Documentation • Scope and Requirements • Documentation 10/15 G.Croari irfu / SACM 10/15

  22. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.a) Documentation • Scope and Requirements • Documentation • Non Conformrmity Report G.Croari irfu / SACM 10/15

  23. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.b) Incoming Inspection Tests • Unloading from the lorry G.Croari irfu / SACM 11/15

  24. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.b) Incoming Inspection Tests • Unloading from the lorry • Installation under a test frame G.Croari irfu / SACM 11/15

  25. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.b) Incoming Inspection Tests • Unloading from the lorry • Installation under a test frame • Bending and Joint box installation G.Croari irfu / SACM 11/15

  26. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.b) Incoming Inspection Tests • Unloading from the lorry • Installation under a test frame • Bending and Joint box installation • Cablings and tests: Temperature sensors, Strain gauges, Extensometers G.Croari irfu / SACM 11/15

  27. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.b) Incoming Inspection Tests • Unloading from the lorry • Installation under a test frame • Bending and Joint box installation • Cablings and tests: Temperature sensors, Strain gauges, Extensometers • QD Wire check, DC insulation test G.Croari irfu / SACM 11/15

  28. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.c) Coils Into Cryostat • Coil at open cryostat: QD wire check, DC test G.Croari irfu / SACM 12/15

  29. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.c) Coils Into Cryostat • Coil at open cryostat: QD wire check, DC test • Under Vacuum: Leak test Calibration leak Coil leak G.Croari irfu / SACM 12/15

  30. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.c) Coils Into Cryostat • At open cryostat: QD wire check, DC test • Under Vacuum: Leak test • Coils at cryogenic temperature:  Current test AC test, DC test G.Croari irfu / SACM 12/15

  31. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.c) Coils Into Cryostat • At open cryostat: QD wire check, DC test • Under Vacuum: Leak test • Coils at cryogenic temperature: Current test, AC test  DC test AC test is to test the interlayer insulation G.Croari irfu / SACM 12/15

  32. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.c) Coils Into Cryostat • At open cryostat: QD wire check, DC test • Under Vacuum: Leak test • Coils at cryogenic temperature: Current test, AC test, DC test  DC test is a general check of insulation G.Croari irfu / SACM 12/15

  33. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.d) Outgoing check • Before shipment: QD wire check • Outgoing check G.Croari irfu / SACM 13/15

  34. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 3. Conclusion • My Contribution G.Croari irfu / SACM 14/15

  35. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2) Conclusion Coil testing is about 60 % accomplished The testing rate increased significantly from 2 coils / year in 2003 up to 18 coils / year in 2007 A failure can be considered as a chance to learn more G.Croari irfu / SACM 15/15

  36. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 2.a) My contribution Daily work: What I would like to improve: Daily communication between CEA and IPP La Langue Française Documentation in case of unexpected behaviour during test Control Systems Understanding of the test facility Data Acquisition Systems G.Croari irfu / SACM 15/15

  37. Wendelstein 7–X training seminar Max-Planck-Institut für Plasmaphysik WENDELSTEIN 7-X MC 1-YKB01 Barth, April 23 - 24, 2008 Thanks to... CEA: L.Genini B.Renard L.Vieillard All the French technicians IPP: H.Viebke K.Hertel J.Baldzuhn H.Ehmler G.Croari irfu / SACM

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