Operating Characteristics of an Insulationless HTS Magnet Under the Conduction Cooling Condition

Author

Kwangmin Kim ; Sung-Jun Jung ; Hae-Jin Sung ; Gyeong-Hun Kim ; Seokho Kim ; Sangjin Lee ; A-Rong Kim ; Minwon Park ; In-Keun Yu

Author_Institution

Dept. of Electr. Eng., Changwon Nat. Univ., Changwon, South Korea

Volume

23

Issue

3

fYear

2013

fDate

Jun-13

Firstpage

4601504

Lastpage

4601504

Abstract

This paper considers the insulationless high-temperature superconducting (HTS) magnet as a new and innovative concept for dc applications due to its benefits as compared to conventional HTS magnets with insulation layers between HTS conductors. The purpose of this paper is to study the operating characteristics of an insulationless HTS magnet. The normal operating characteristics of the insulationless HTS magnet were investigated according to the various current levels. Thermal stability of the insulationless HTS magnet was also analyzed. The critical current of the insulationless HTS magnet was measured at 40 K. The temperature distribution of the insulationless HTS magnet was measured using thermocouples. The experiment results demonstrate superior thermal stability characteristics in the insulationless HTS magnet. Thus, it is confirmed that the thermal performance of large-scale HTS magnets can be enhanced by applying insulationless magnets instead of general insulated HTS magnets.

Keywords

cooling; critical currents; high-temperature superconductors; superconducting magnets; temperature distribution; thermal stability; thermocouples; HTS conductors; conduction cooling condition; critical current; current levels; dc applications; insulated HTS magnets; insulation layers; insulationless high-temperature superconducting magnet; large-scale HTS magnets; normal operating characteristics; temperature distribution; thermal performance; thermal stability characteristics; thermocouples; Cooling; High temperature superconductors; Magnetic multilayers; Magnetic noise; Magnetic shielding; Superconducting magnets; Thermal stability; Conduction cooling; high temperature superconductor; insulationless magnet; superconducting coils; superconducting magnet; thermal stability;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2013.2238978

Filename

6407815