Tests results and analysis of inductive superconducting fault current limiter with Bi-2223 tube and HTS tape as secondary winding

The Superconducting Fault Current Limiters are very attractive devices for the electrical power network. The performance comparison of inductive SFCL with three different secondary windings are presented in this paper. As secondary windings we used Bi-2223 tube, HTS tape and HTS tape parallel rings. We proved that the limiting capabilities of the SFCL with different windings are comparable, and the windings made of HTS tape are less expensive and more mechanically stable then HTS tubes. We proposed two method of implementation of shorted secondary winding. The experimental results show that HTS tube can be successfully substitute by cheaper shorted winding made of HTS tape.