Overcurrent limiting and quench recovery characteristics of superconducting tapes utilized in SFCLT under AC impact

摘要

The 2G superconducting tapes are widely applied in the field of electric power because of low-impedance current-carrying characteristics in the superconducting state and the overcurrent-limiting in the normal state, and Superconducting Fault Current-Limiting Transformer (SFCLT) is one of the most important applications of superconducting tapes in power equipment. In this paper, a simulation model of superconducting tape is established to analyze the overcurrent limiting ability of superconducting tape, and then AC impact experiments are carried out with different types of superconducting tapes to study the quench and recovery characteristics. The experimental results demonstrates the correctness of the simulation model. The results in this paper can be utilized to select the suitable superconducting tapes for SFCLT.