Transverse Load Versus Mechanical Characteristics and Inter-Strand Resistances in the Cable of the “Option 2” Specification for ITER TF Conductor

Author

Oh, Dong Keun ; Oh, Sangjun ; Kim, Hyoung Chan ; Choi, Heekyung ; Lee, Chulhee ; Park, Wonwoo ; Kim, Keeman

Author_Institution

Nat. Fusion Res. Center, Daejeon, South Korea

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

495

Lastpage

498

Abstract

A revised specification of ITER TF conductor was proposed as "Option2" for the baseline design. The cabling pitches of early stages and the void fraction were adjusted in the consequence of previous R&D programs to improve the degradation of performance against cyclic current loadings in the magnetic field. To obtain the characteristics of the developed design, which are related to the effect of the electromagnetic load, the mechanical parameters and the contact resistances between components of cable were investigated employing a specially developed device of cryogenic press in the transverse direction for a short sample of the conductor cable. Through the measurements, the mechanical characteristics against the cyclic loads were discussed, as well as the effect on inter-strand resistances, according to the cable design.

Keywords

Tokamak devices; contact resistance; cryogenics; superconducting cables; ITER TF conductor Option 2 specification; cabling pitches; contact resistance; cryogenic press; cyclic current loadings; electromagnetic load effects; interstrand resistance; mechanical characteristics; mechanical parameters; toroidal field conductor; transverse load; ${hbox{Nb}}_{3}{hbox{Sn}}$; CICC; ITER; TF conductor; contact resistance; cryogenic press; mechanical property;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2043835

Filename

5443501