Investigation of high-Tc bulk material for its use in resistive superconducting fault current limiters
Investigation of high-Tc bulk material for its use in resistive superconducting fault current limiters
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DOI：
10.1109/77.920236
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发表时间：
2001-03-01
影响因子：
1.8
通讯作者：
Elschner, S
中科院分区：
文献类型：
--
作者：
Noe, M;Juengst, KP;Elschner, S
超导故障限流器（SCFCL）提供了一个有吸引力的手段，以限制电力系统中的短路电流，现有的高温超导材料的比较，使我们决定研究熔铸工艺（MCP）的BSCCO和熔融织构多晶YBCO用于电阻SCFCL。作为一个，每个单位元件的超导体的大的长度是优选的，BSCCO样品被成形为从管制备的双线线圈和YBCO样品被制造成曲折形状的几何形状，测试结果有关的接触电阻，E-J曲线，交流损耗以及样品的失超行为，实验揭示了高的材料均匀性的要求作为主要的挑战。
Superconducting fault current limiters (SCFCL) offer an attractive means to limit short-circuit currents in power systems, Comparisons of available HTS material led us to the decision 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.