High-Tc superconducting inductive current limiter for 1 kV/25A performance

Author

Meerovich, V. ; Sokolovsky, V. ; Jung, Gwang-Pil ; Goren, S.

Author_Institution

Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

1044

Lastpage

1046

Abstract

The results of investigations of an inductive current limiting device prototype based on superconducting to normal state transition in 0.2 m o/d. BSCCO rings are discussed. Thermal processes in the ring were found to have an important influence on transient response characteristics of the limiter. In a marked difference to small scale devices, the quenching process in a medium scale current limiter is accompanied by an intense heating of the HTSC ring. Because of high losses and large thermal inertia, the superconducting ring remains in the normal state during entire limitation time and at least a few AC cycles pass before the superconducting state in the rings is resumed after a fault occurrence.<>

Keywords

current limiters; high-temperature superconductors; overcurrent protection; power system protection; superconducting coils; superconducting magnets; 0.2 m; 1 kV; 25 A; BiSrCaCuO; HTSC ring; high losses; high-Tc superconductor; inductive current limiter; intense heating; limitation time; overcurrent protection; power systems; quenching process; thermal inertia; thermal processes; transient response characteristics; Bismuth compounds; Circuit faults; Circuit testing; Cross layer design; Current limiters; Impedance; Magnetic flux; Prototypes; Superconducting coils; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.402730

Filename

402730