限流器用第二代超导带材的电阻和冲击特性实验研究

Experiment study of resistance and overcurrent characteristics of 2G HTS tape for superconductor fault current limiter

为了评估用于电阻型超导限流器的第二代超导带的电阻和大电流冲击特性,实验研究了两种不同厚度的超导带的常温电阻和在100 ms交流大电流冲击下的电流和温升的关系。结果表明,厚带比薄带的耐受冲击电流性能好,但是常温电阻较小。限流器设计时,需在冲击性能和经济性两者之间做出平衡。

To evaluate the resistance and high AC overcurrent characteristics of 2G HTS tapes for resist- ance type superconductor fault current limiter, an experiment of room temperature resistance and the relation of overcurrent with a duration of lOOms and temperature rise of two type tape with different thickness was conducted. The results shows that the thick tape has a better overcurrent bearing performance while a smal- ler resistance. Trade off should be taken between overcurrent performance and economic for superconductor fault current limiter design.