Forces and Stresses in the Windings of a Superconducting Fault Current Limiter

This paper presents the design of a Superconducting Fault Current Limiter (SFCL) and calculation results forces stresses in windings resistive fault current limiter. The limiter consists two parallelly connected magnetically coupled windings, cooled by single stage cryocooler. Magnetically compensated made HTS tape give very low voltage on at nominal current. Limitation short-circuit time value maximum initial reduces thermal dynamic effects passage Using devices which limit can lower level required capacity elements system. However, selected means currents limitation must maintain power quality standards. A perfect is to have substantial impedance conditions zero work currents. Such requirements are met SFCL. An increase caused occurrence transition superconducting material from state into state. increases loop, allowing decrease. During short-circuit, generated also act windings. Short-circuit causes tape. Exceeding permissible stress an irreversible reduction critical Calculations for were carried out using finite element method. constructed was tested winding ensures that safe even