Quench and Recovery Characteristic of DC Current Limiting Type CORC Cable

The CORC superconducting cable composed of YBCO conductors has high power density and low energy dissipation characteristics, showing significant potential in efficient electric energy transmission. Its abrupt transition from superconducting state to normal state provides a good solution for designing cable-type fault current limiters. This study investigates the effects of insulation layer placement and winding configuration on the resistance behavior, temperature rise of YBCO tapes, and recovery time of CORC cables during quench processes. A two-dimensional radial electro-magnetic-thermal coupled simulation model is developed to analyze and predict the temperature evolution of the YBCO layer under different cable structures. Representative configurations are selected for sample fabrication and experimental validation to explore the underlying causes of variations in quench resistance and recovery characteristics. The findings provide theoretical support and experimental basis for the design of CORC cable-based superconducting fault current limiters.