5-9 September 2016
Prague Congress Centre
Europe/Prague timezone

P2.091 Manufacturing and acceptance by CEA of the first JT-60SA TF coils

6 Sep 2016, 14:20
1h 40m
Foyer 2A (2nd floor), 3A (3rd floor) (Prague Congress Centre)

Foyer 2A (2nd floor), 3A (3rd floor)

Prague Congress Centre

5. května 65, Prague, Czech Republic
Board: 91
Poster E. Magnets and Power Supplies P2 Poster session

Speaker

Patrick Decool (CEA)

Description

In the frame of the Broader Approach, CEA provides 9 + 1 spare TF coils for the JT-60SA tokamak. Mid 2011, a manufacturing contract was awarded to Alstom, Belfort, now General Electric. The first years were dedicated to the manufacturing process definition, the critical phases qualification through a set of 12 mockups, the manufacturing QA definition and the procurement and commissionning of the tooling. This done, the production started early 2014. The workshop is organized in 12 workstations. The production starts with the preparation of the conductors provided by F4E and the winding in a stack of 6 Double Pancakes (DPs) which constitutes the Winding Pack (WP). The joints to connect electrically the DPs and the impregnations finalize the WP. End 2014, acceptance tests related to geometry, tightness and electrical insulation validates the WP for the following integration operations. The casings made under contract to ENEA, are delivered as a set of components, including the U shaped straight and curved legs forming the D shape of the coil and the inner covers. After preparation, the WP is inserted vertically inside the casing straight leg lying horizontally. The curved leg and covers are then added to close the coil. The WP geometry and location in the casing are carefully controlled. The casing elements enclosing the WP are then welded either manually or by robots before performing  the blocking impregnation. A final machining adjusts then the coil interfaces to the precise WP references. After insulated piping integration, the final coil acceptance in terms of geometry, tightness and insulation allowed the delivery of the first coil at the cold test facility end 2015. This paper describes the first TF coils manufacturing process , the status of the production and provides first insights into the manufacturing feedback and the first coils performance results .

Co-authors

Alex Bourquard (General Electric, 90018 Belfort, France) Alexandre Torre (CEA, Saint Paul lez Durance, France) Bruno Crepel (General Electric, 90018 Belfort, France) Enrico Di Pietro (F4E, 85748, Garching, Germany) Gerard Billotte (General Electric, 90018 Belfort, France) Gilles Gros (CEA, Saint Paul lez Durance, France) Guillaume Jiolat (CEA, Saint Paul lez Durance, France) Jean Claude Vallet (CEA, Saint Paul lez Durance, France) Jean Louis Marechal (CEA, Saint Paul lez Durance, France) Marc Nusbaum (General Electric, 90018 Belfort, France) Patrick Decool (CEA, Saint Paul lez Durance, France) Rene Gonde (CEA, Saint Paul lez Durance, France) Sam Davis (F4E, 85748, Garching, Germany)

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