A quenching recovery time test method for resistive type superconducting fault current limiters used in DC circuit

The objective of this paper is to propose a quenching recovery time measurement method for superconducting fault current limiter used in DC circuit. The proposed measurement method includes an experiment circuit, in which there is a L-C discharging current source and a DC circuit breaker. The L-C current source can produce a high DC current which quenches the superconducting coil. Then the DC circuit breaker cuts off the DC current. After that the superconducting coils start to recover the superconducting state. The voltage and current of the SFCL are measured in quenching and the recovery period, from which the quenching recovery time can be determined, which is a duration from the recovery process starts to the recovery process completes.