Hybrid superconducting fault current limiter based on bulk melt textured YBa₂Cu₃O₇ ceramic composites

作     者：Granados, X Obradors, X Puig, T Mendoza, E Gomis, V Piñol, S García-Tabarés, L Calero, J 

作者机构：CSIC Inst Ciencia Mat Barcelona Bellaterra 08193 Spain CEDEX Madrid 28014 Spain 

出 版 物：《IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY》 (IEEE Trans Appl Supercond)

年 卷 期：1999年第9卷第2期

页      面：1308-1311页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0702[理学-物理学] 

基　　金：Comisión Interministerial de Ciencia y Tecnología, CICYT, (MAT96-1052, REE97-1176) Comisión Interministerial de Ciencia y Tecnología, CICYT 

主　　题：Fault currents Superconducting coils Superconducting transmission lines Protection Ceramics Superconducting materials Fault current limiters Bars Voltage Copper 

摘      要：A hybrid fault current limiter (FCL) based on single domain bars of Y123/211 melt textured composites has been designed to operate at a 1 kV/400 A line. This consists of a conventional Cu primary coil inductively coupled to a secondary coil formed by the paralleling of single Cu turns each one shorted by a superconducting bar. The superconducting material has been prepared by the solidification techniques of Bridgman and Top Seeding in air which has allowed us to obtain bars with transport critical current densities of 20000 A/cm(2) at 77 K. Preliminary tests on the quench current, recovery time and aclosses in normal operation have been performed. The differences and advantages of a hybrid FCL in comparison with a resistive and an inductive FCL will be discussed.