Conduction-Cooled Brass Current Leads for a Resistive Superconducting Fault Current Limiter (SFCL) System

Author

Lee, Hai Gun ; Kim, H.M. ; Lee, B.W. ; Oh, I.S. ; Kim, H.-R. ; Hyun, O.-B. ; Sim, J. ; Chang, H.M. ; Bascunan, J. ; Iwasa, Y.

Author_Institution

Korea Univ., Seoul

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2248

Lastpage

2251

Abstract

This paper presents the design and performance results of a pair of conduction-cooled brass current leads for a resistive superconducting fault current limiter (SFCL) system. The 24 kV class SFCL, which has been recently developed by the KEPRI-LSIS collaboration group in Korea, requires three pairs of conduction-cooled brass current leads operated continuously at 630 A. When the SFCL system is in the fault-mode, the current leads have experienced a 60-Hz fault current of ~10 kA at 24 kV for 3-5 cycles. In this paper, we present the performance results of the conduction-cooled brass (commercial brass, 10% Zn) leads having a rated current of 667 A operated in a bath of liquid nitrogen.

Keywords

fault current limiters; conduction-cooled brass current leads; fault-mode; resistive superconducting fault current limiter system; Collaboration; Copper; Fault current limiters; Fault currents; Materials science and technology; Research and development; Superconductivity; Thermal conductivity; Thermal resistance; Zinc; Brass current lead; superconducting fault current limiter (SFCL);

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.898146

Filename

4277547