Influence of Current Change Rate During DC Current Limitation on the Coated Conductor Degradation

• Published in: IEEE transactions on applied superconductivity Vol. 31; no. 5; pp. 1 - 5
• Main Authors: Mosat, Marek, Souc, Jan, Vojenciak, Michal, Solovyov, Mykola, Buran, Marek, Gomory, Fedor
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.08.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Conductors; Critical current (superconductivity); Current limiters; Damage prevention; Degradation; Direct current; Electric fields; fault current limiters; fault currents; fault tolerance; HVDC transmission; Liquid nitrogen; Numerical models; Silver; Superconducting tapes; Superconductivity; Superconductors; Temperature measurement

The paper explores the idea of reducing the amount of REBCO conductor in Resistive Superconducting Fault Current Limiters (R-SCFCL) by reducing the temperature of liquid Nitrogen from 77 K to 66 K. Because of lower temperature, the critical current increase approximately two times, and instead of tw...