The superconducting fault current limiter (SFCL), as a very important power facility for high voltage DC system, can consume fault current energy and make DC breakers cut off fault transmission lines successfully. For the moment of reclosing DC breakers, the quench recovery time of the SFCL must be determined in advance. In this article, according to the design requirement of a 160 kV/1 kA resistance type DC SFCL in the Nan’ao multi-terminal flexible HVDC transmission demonstration project, the quench recovery time of a SCFL coil wound by two optical fiber encapsulated high temperature superconducting (OFE-HTS) tapes was checked by our optimized Raman-based distributed temperature sensing (Rm-DTS) system. The experimental results show that the used OFE-HTS tapes can withstand a 1500 A/100 ms AC short circuit current impact and are qualified with the SFCL. Furthermore, the quench recovery time of the SFCL coil measured by the Rm-DTS was 2930 ms. During the quench, the highest temperature zone occurred near the center of the SFCL coil.

超导故障限流器（SFCL）作为高压直流系统中非常重要的电力设施，可以消耗故障电流能量，使直流断路器成功切断故障输电线路。对于重合闸直流断路器的瞬间，SFCL 的失超恢复时间必须提前确定。本文根据南澳多端柔性直流输电示范工程中160 kV/1 kA电阻型直流SFCL的设计要求，研究了由两根光纤封装高温绕制的SCFL线圈的失超恢复时间我们优化的基于拉曼的分布式温度传感 (Rm-DTS) 系统检查了超导 (OFE-HTS) 胶带。实验结果表明，所使用的OFE-HTS胶带能够承受1500 A/100 ms的交流短路电流冲击，符合SFCL标准。此外，由 Rm-DTS 测量的 SFCL 线圈的失超恢复时间为 2930 ms。在失超期间，最高温度区出现在 SFCL 线圈中心附近。