Development of a 600 A HTS current lead using modular design

Author

Scheller, Holger ; Rothfeld, Rolf ; Werfel, Frank ; Gehring, Michael

Author_Institution

Babcock Noell Nucl. GmbH, Wurzburg, Germany

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1310

Lastpage

1312

Abstract

The paper reports about the development and fabrication of a 600 A HTS current lead prototype. Main focus of this task was an economic and robust design. Thus we used a fiberglass housing, also providing electrical insulation, replaceable parts and common soldering technology. The HTS part was made from an YBCO bar fabricated according to the ATZ in-house Ceramo Crystal Growth technology. Due to mechanical reasons and to reach a sufficient low contact resistance, a bar had to be used which had a far higher transport current carrying capability than the required 600 A. The measurements at low temperatures showed, that the chosen design is suitable for application. Especially advantages for high current applications can be expected.

Keywords

barium compounds; critical current density (superconductivity); heat losses; high-temperature superconductors; melt texturing; soldering; superconducting cables; superconducting magnets; yttrium compounds; 600 A; HTSC current lead prototype; Large Hadron Collider; YBaCuO; assembling; critical current density; economic robust design; electrical insulation; fabrication; fiberglass housing; heat leak; helical tube; high current applications; high transport currents; low contact resistance; melt texturing; modular design; quench protection; replaceable parts; soldering technology; Contact resistance; Dielectrics and electrical insulation; Fabrication; High temperature superconductors; Lead; Prototypes; Robustness; Soldering; Temperature measurement; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018643

Filename

1018643