AbstractGB2The Superconducting Fault Current Limiter (SFCL) is a device of particular interest to electricity companies since it is aimed to maintain fault current levels on electricity networks to acceptable values, i.e. within electrical component design limits. The use of high temperature superconductors (HTS) allows the fabrication of effective SFCL devices with different configurations. In this work, we report on simulations and electrical testing of resistive-type SFCL prototypes. Short-circuit testing of several HTS windings has been carried out at CESI facility. Prospective symmetrical and asymmetrical fault currents 40 times larger than the nominal current value have been applied for 40-160ms on single-phase devices. As a result, the prospective peak short-circuit current of 4,5kA has been effectively reduced to 300A-800A depending of applied voltage. Time evolution of limited current, voltage across SFCL prototypes, dissipated energy and heating phenomena are reported and discussed. Index TermsGB2Electrical testing of HTS, Fault current limiter, High temperature superconductors, Simulations,. Manuscript received October 5, 2004. Corresponding author’s e-mail: lmartini@cesi.it. L. Martini, M. Bocchi, M. Levati, V. Rossi, and V. Scarioni are with CESI SpA, Via Rubattino 54, 20134 Milano, Italy. This work was supported by the Research Fund for Italian Electrical System established with Ministry of Industry Decree DM 26/1/2000. Simulations and electrical testing of superconducting fault current limiter prototypes Luciano Martini, Marco Bocchi, Mario Levati and Valerio Rossi PUBBLICATO A5018072 (PAD – 637058)