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Arsenio, Pedro, Tiago Silva, Nuno Vilhena, João Pina, and Anabela Pronto. "Analysis of Characteristic Hysteresis Loops of Magnetic Shielding Inductive Fault Current Limiters." IEEE Transactions on Applied Superconductivity. 23 (2013): 5601004. AbstractWebsite

Magnetic shielding inductive fault currentlimiterswith high temperature superconducting cylinders have previously been described by a characteristic (or maximum)hysteresisloop, built from properties of their constitutive parts, which allowed predicting their behavior in electrical grids. These preliminary results were based on finite elements simulations, but posterior experiments suggested limitations in the models. In order to investigate the application of these previous models to real devices, two laboratory scale prototypes were built with different types of superconducting material in the secondary, either bulk cylinder, either tape. Although the behavior of both devices is still approximately defined by a maximumhysteresisloop, differences in the shielding current response, when compared with previous model, must be incorporated in future models.