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

P1.022 The transmission line for the SPIDER experiment: from design to installation

5 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: 22
Poster B. Plasma Heating and Current Drive P1 Poster session

Speaker

Marco Boldrin (Consorzio RFX (CNR)

Description

SPIDER (Source for the Production of Ions of Deuterium Extracted from RF plasma) is the 100keV Ion Source Test facility (presently under construction in the Neutral Beam Test Facility at Consorzio RFX premises, in Padua, Italy) representing the full scale prototype of the Ion Source (IS) for the ITER 1 MeV Neutral Beam Injector (NBI).  SPIDER Ion Source, polarized at -100kVdc Power Supply, is meant to produce Deuterium or Hydrogen negative ions which, after being extracted by the extraction grid, are accelerated up to ground potential. The required Ion Source and the Extraction Grid Power Supplies (ISEPS) system and the associated diagnostics need to be hosted inside a -100kVdc air-insulated Faraday cage, called High Voltage Deck (HVD), while a High Voltage Transmission Line (TL) transmits the power and signal conductors from the ISEPS to the Ion Source.  An air insulated design of the TL, duly screened against Electromagnetic Interferences (EMI) produced by the frequent IS grids breakdowns was preferred to a more complex and costly Gas Insulated Line design because of the large diameter required by the TL inner conductor to host all ISEPS power and signal conductors, fibres optic and cables. The TL is procured (together with the HVD) by COELME SpA, via a procurement contract with Fusion for Energy (F4E) started mid 2013. The paper describes the construction solutions developed by the Manufacturer to meet the design indications and technical specification requirements for such unconventional device. Moreover, the results of factory type tests, carried out on a first section of the TL mid-2015 to validate the design and release the manufacturing of the overall TL, are also described. Finally, the paper reports on the on-site installation and commissioning activities, presently ongoing, up to the final acceptance foreseen within the current year.

Co-authors

Andrea Guion (COELME Costruzioni Elettromeccaniche S.p.A., via G. Galilei n° 1/2, 30036 S. Maria di Sala (Venezia), Italy) Daniel Gutierrez (Fusion For Energy, c/o Josep Pla 2, 08019 Barcelona, Spain) Diego Pedron (COELME Costruzioni Elettromeccaniche S.p.A., via G. Galilei n° 1/2, 30036 S. Maria di Sala (Venezia), Italy) Edoardo Maggiora (COELME Costruzioni Elettromeccaniche S.p.A., via G. Galilei n° 1/2, 30036 S. Maria di Sala (Venezia), Italy) Giovanni Faoro (COELME Costruzioni Elettromeccaniche S.p.A., via G. Galilei n° 1/2, 30036 S. Maria di Sala (Venezia), Italy) Hans Decamps (ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 St Paul Lez Durance Cedex, France) Marco Boldrin (Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), Corso Stati Uniti 4, 35127 Padova, Italy) Muriel Simon (Fusion For Energy, c/o Josep Pla 2, 08019 Barcelona, Spain) Vanni Toigo (Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete S.p.A.), Corso Stati Uniti 4, 35127 Padova, Italy)

Presentation Materials

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