A new model of fault current limiter using YBCO thin film

Author

Kubota, H. ; Arai, Y.K. ; Yamazaki, M. ; Yoshino, H. ; Nagamura, H.

Author_Institution

Adv. Res. Lab., Toshiba Corp., Kawasaki, Japan

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

1365

Lastpage

1368

Abstract

Resistive fault current limiters which consist of a YBCO film and a normal conducting film were constructed. The YBCO film was connected by indium wires to the normal conducting film in parallel at intervals of about 10 mm to increase the allowed voltage across the fault current limiter during the current-limiting operation. Current limiting experiments show that an allowed voltage across the fault current limiter during current-limiting operation of over 13 V/cm was achieved. Moreover, by combining in parallel 2 sets of 3 serially connected fault current limiters fabricated using 100 mm/spl times/10 mm YBCO film, a rated power of over 20 kVA is obtained.

Keywords

barium compounds; copper compounds; fault current limiters; high-temperature superconductors; superconducting devices; superconducting thin films; yttrium compounds; 10 mm; 100 mm; YBCO thin film; YBaCuO; current-limiting operation; fault current limiter; indium wires; normal conducting film; Conductive films; Fault current limiters; Fault currents; Magnetic shielding; Power system protection; Superconducting coils; Superconductivity; Transistors; Voltage; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783556

Filename

783556