Analysis of current after normal transition in a cable-in-conduit conductor

Author

Koizumi, Norikiyo ; Ando, Toshinari ; Takahashi, Yoshikazu ; Tsuji, Hiroshi ; Shimamoto, Susumu

Author_Institution

Supercond. Magnet Lab., JAERI, Ibaraki, Japan

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2575

Lastpage

2578

Abstract

When some strands carry a large current as a result of current imbalance, they may initially become normal and the current is transferred to other superconducting strands. A one-dimensional simulation code for stability and quench of a cable-in-conduit conductor is improved to study this phenomenon using an infinitely long distributed circuit model, in which the current can easily be calculated. The results show the normal zone propagation plays a significant role in the current decay. Also, they are indicated that the conductor is more stable for higher conductance but the stability of the conductor seems more important to prevent instability due to the current imbalance

Keywords

electric conduits; multifilamentary superconductors; superconducting cables; cable-in-conduit conductor; current analysis; current decay; current imbalance; infinitely long distributed circuit model; normal transition; normal zone propagation; one-dimensional simulation code; superconducting strands; Circuit simulation; Circuit stability; Conductors; Critical current; Heat transfer; Heating; Inductance; Performance analysis; Superconducting cables; Superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920394

Filename

920394