Development of the electric networks led to more interconnection in this system, therefore high level of short circuit faults flows in the networks. Many destructive damages such as instability, insulation problems and voltage mitigation can highly play unwanted influences on the system's equipment. Using appropriate protection devices like high voltage fuses, fast switches, and such devices reduce these destructive effects. Superconducting Fault Currents Limiter (SFCL) as one of developing

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... od of fault current reduction is able to be used for the mentioned goal. In this paper SFCL is studied in an AC electric railway system.