Reduction of steady-state impedance in magnetic shielding type superconducting fault current limiter

A magnetic shielding type superconducting fault current limiter (MSFCL) has undesirable leakage impedance and thus the voltage drop relating to the leakage impedance occurs in the steady-state operation (the standby condition of a fault). Therefore, in this paper, a divided MSFCL model is proposed to reduce the value of the leakage impedance in the steady-state operation. The divided model of MSFCL was actually constructed. Then, some experiments were carried out to demonstrate the advantage of the divided model. We confirmed the advantage of the divided model of the MSFCL through these experiments.