Indirect Cooling of Superconducting Fault Current Limiter

Superconducting fault current limiters based on high temperature superconducting coated conductors are novel devices which enable us further development of the medium voltage electricity network. In the current manuscript we present a short overview of the most important parameters and features of these devices. A special attention is paid to the thermal analysis and the cooling conditions. We propose an optimization of the insulator thickness of the superconducting tapes to reduce the temperature increase of the superconductor at rated current and given time of limitation. With our approach it is possible to reduce the temperature increase of 70 K.