Currents Induced in the Lap-Type Joints of Superconducting Cable-in-Conduit Conductors Exposed to the Time-Varying Magnetic Field

Author

Astrov, M.S. ; Egorov, S.A. ; Rodin, I.Y. ; Zapretilina, E.R. ; Fedotova, S.B.

Author_Institution

Efremov Res. Inst. of Electrophys. Apparatus, St. Petersburg, Russia

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

4801404

Lastpage

4801404

Abstract

Two models to evaluate the currents induced in the lap-type electrical joints of multistage cable-in-conduit superconductors are developed. The currents are originated from the action of time-varying magnetic field penetrating into the gap between jointed cables. In the low-resistance joints (~ 2 nΩ) high loop currents can be induced. Reduction of these currents is originated from the short time of fast ramping of the magnetic field which the joints are exposed to. The paper contains description of the models and analytical results obtained.

Keywords

electric conduits; superconducting materials; lap-type electrical joints; low-resistance joints; multistage cable-in-conduit superconductors; superconducting cable-in-conduit conductors; time-varying magnetic field; Current distribution; Joints; Magnetic fields; Power cables; Superconducting cables; Superconducting magnets; Wires; Cable-in-conduit conductor; induced currents; lap-type joints; modeling;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2185972

Filename

6151045