Resistive current limiters with YBCO films

Author

Gromoll, B. ; Ries, G. ; Schmidt, W. ; Kramer, H.-P. ; Kummeth, P. ; Neumuller, H.-W. ; Fischer, S.

Author_Institution

Siemens AG, Erlangen, Germany

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

828

Lastpage

831

Abstract

The aim of this work is to develop a function model of a resistive HTSC fault current limiter. The switching elements of the fault current limiter are bath-cooled in a liquid nitrogen cryostat. The elements consist of YBaCuO films which are deposited on different substrates with critical current densities of up to 3/spl middot/10/sup 6/ A/cm/sup 2/. For the most effective limiting samples so far the peak let-through current was twice tile nominal current and the steady short-circuit current below nominal current. The concept of a 100 kVA function model is introduced.

Keywords

barium compounds; copper compounds; critical current density (superconductivity); current limiters; high-temperature superconductors; power system protection; short-circuit currents; superconducting devices; yttrium compounds; 100 kVA; YBaCuO; YBaCuO HTSC; critical current densities; liquid nitrogen cryostat; peak let-through current; resistive fault current limiter; short-circuit current; substrates; switching elements; Critical current density; Current limiters; Fault current limiters; Gold; Substrates; Superconducting cables; Superconducting epitaxial layers; Superconducting films; Superconducting magnetic energy storage; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.614631

Filename

614631