The study of superconducting fault current limiter is significant and important for limiting short circuit current and short circuit capacity. Based on the properties of the MgB2

a small resistive-type superconducting fault current limiter (SFCL) prototype insulated by a special high temperature glass fiber is developed in the process of deformation

annealing and curing by epoxy adhesive. The prototype cooled by liquid helium and helium is tested and simulated by a one-dimensional heat conduction model and circuit equation. The results show that the current limiting effect of the SFCL is obvious and the short-current is limited by 44% and above

but the resistance of SFCL

the quenching length and temperature on the superconducting wire vary nonlinearly with time while the SFCL does not quench completely. The quench recovery time is about 1.5 s. So reclosing can be solved by alternately connecting the current limiting elements on the power grid. Finally

for 10 kV power systems

the project design principles of small resistive-type superconducting fault current limiter based on MgB2 are proposed

with the feasibility of engineering application analyzed.