Strombegrenzende Hochtemperatur-Supraleiter-Leistungsschalter Jahres- und Abschlussbericht 1991

This report deals with the description of building up, setting in operation and using of experimental equipment for getting characteristical data of high-T_C-superconductors, especially for their future use in switching devices. Fundamental results are discussed. The work includes the assembly of a computer-supported resistance-temperature measuring equipment by using LN_2 or refrigerator cooling technique, which allows static and dynamic current/voltage-measurements. Measurements of the dependency of resistivity from temperature, current and magnetic field were made. YBCO bulk, thin and thick films and BSCCO bulk and powder-intube material with and without silver coating were investigated. A simulation-program was developed to simulate a fictitious resistive fault current limiters and its behaviour under network conditions. By using experimental data multiple calculations were made. (orig.)SIGLEAvailable from TIB Hannover: F94B0221+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman