Current degradation of multi-strand superconducting cable caused by non-ideal inductive coupling between its components

Author

Romanovskii, Vladimir R.

Author_Institution

I.V. Kurchatov Inst. of Atomic Energy, Acad. of Sci., Moscow, Russia

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1578

Lastpage

1581

Abstract

A theoretical investigation of the current-carrying capacity of superconducting cable with insulated strands as a function of the inductive coupling nature between the strands is presented. The stability of the superconducting state was analyzed by a nonisothermal model. It is shown that, if the matrix of the cable strand inductance has degradation, the degradation of the stable current flowing in the cable can be considerable over the whole range of the current charging. The degradation becomes stronger with increasing both the number of strands in the cable and the imbalance of their mutual inductance.

Keywords

inductance; modelling; stability; superconducting cables; cable strand inductance; current degradation; current imbalance; current-carrying capacity; inductance distribution; inductance matrix degradation; inductive coupling; insulated strands; multi-strand superconducting cable; mutual inductance imbalance; nonideal inductive coupling; nonisothermal model; ramp-rate limitation; superconducting state stability; Cable insulation; Conductors; Inductance; Power cable insulation; Power cables; Stability analysis; Superconducting cables; Superconducting magnets; Temperature; Thermal degradation;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018705

Filename

1018705