Thermal design and performance tests of a current limiter with a conduction cooled Nb3Sn screen

We examined the possibility of the practical use of a conduction cooled magnetic shield type fault current limiter from the view point of a thermal design. The thermal calculation was carried out with a small model using the Nb₃Sn wire with low AC loss. We found that the temperature increase of the small model was insignificant. We also confirmed the current limiting operation in an experiment. The conceptual design and the thermal calculation of the conduction cooled fault current limiter for a distribution power system is also discussed in this report