학술논문
Delivered Poloidal Field Coils to ITER Fusion Tokamak Facility: Status, Factory Acceptance Test Results and Overview of the Undergone Electrical Tests in Manufacturing Processes
Document Type
Periodical
Author
Lopez, M.M.; Bonito-Oliva, A.; Carvas, P.; Loizaga, A.; Romano, G.; Aprili, P.; Vizio, E.; Rossi, D.; Batista, R.; Readman, P.; Guang, S.; Magouri, N.; Gaxiola, E.H.R.; Bersier, J.L.; Ilin, Y.; Baikalov, A.; Min, L.; Mitchell, N.; Schild, T.; Damiani, D.; Cavanna, E.; Pizzigoni, G.; Amaduzzi, A.; Berrino, M.; Levrero, M.; Mussinatto, A.
Source
IEEE Transactions on Applied Superconductivity IEEE Trans. Appl. Supercond. Applied Superconductivity, IEEE Transactions on. 34(5):1-5 Aug, 2024
Subject
Language
ISSN
1051-8223
1558-2515
2378-7074
1558-2515
2378-7074
Abstract
Fusion for Energy (F4E), the European Domestic Agency for the International Thermonuclear Experimental Reactor (ITER) is responsible for the manufacturing, test and delivery of 5 out of 6 Poloidal Field Coils of ITER. F4E has currently delivered 4 coils: PF2, PF4, PF5 and PF6, the last two are installed in the Tokamak pit in temporary positions while PF2 and PF4 are stored awaiting the Tokamak torus completion. At the PF coils manufacturing production site in Cadarache, France, few meters away from the ITER Tokamak assembly building, F4E is currently finalizing the manufacturing and testing of the largest coil: PF3, with 24 m diameter and a weight of 384 t, approaching to the end of an endeavor that started back in 2013. This article describes all electrical tests the PF coils underwent to meet the ITER technical requirements during their lengthy manufacturing process, and which lasted several years. Tests performed at key points of the manufacturing process avoided discovering non-conformities at later stages that could otherwise become critical for the project accomplition. The main electrical tests consisted of high voltage DC/AC, partial discharge tests, and local and global Paschen tests. The experimental setups and procedures are presented and discussed in more detail. We also summarize the acceptance test results for the finalized coils i.e., 80 K forced flow pressure drop testing, leak tightness in vacuum before, during and after the thermal cycle to 80 K.