Under short circuit conditions,the superconducting coil will be automatically inserted into the system and thereby limits the fault current,so that the underrated switchgears can be operated safely.

• 当电网发生短路故障时,超导线圈可以无时延地被自动串入线路,从而限制了短路故障电流,使得轻型断路器可以正常动作。