Investigation of high-Tc bulk material for its use in resistive superconducting fault current limiters

Author

Noe, Mathias ; Juengst, Klaus-Peter ; Werfel, Frank ; Cowey, Lisa ; Wolf, André ; Elschner, Steffen

Author_Institution

Inst. fur Tech. Phys., Forschungszentrum Karlsruhe, Germany

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

1960

Lastpage

1963

Abstract

Superconducting fault current limiters (SCFCL) offer an attractive means to limit short-circuit currents in power systems. Comparisons of available HTS material led to the derision to investigate melt cast processed (MCP) BSCCO and melt textured polycrystalline YBCO for use in resistive SCFCLs. As a great length of a superconductor per unit element is preferred, the BSCCO samples are shaped as bifilar coils prepared from tubes and the YBCO samples are manufactured in a meander shaped geometry. Test results concerning contact resistances, E-J curves, AC losses as well as the quench behaviour of the samples are presented. The experiments reveal the requirement of a high material homogeneity as the main challenge

Keywords

fault current limiters; high-temperature superconductors; power system faults; power system protection; short-circuit currents; superconducting coils; superconducting devices; AC losses; Bi₂Sr₂CaCu₂O₈; E-J curves; YBaCuO; bifilar coils; contact resistances; high-Tc bulk superconducting material; melt cast processed superconductors; power systems; quench behaviour; resistive superconducting fault current limiters; short-circuit currents limitation; Bismuth compounds; Fault current limiters; Geometry; High temperature superconductors; Manufacturing; Power system faults; Superconducting coils; Superconducting materials; Testing; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920236

Filename

920236