IEEE Transactions on Applied Superconductivity · 2011 · 26 citations · 5 references
EngineeringElectrical EngineeringCircuit TheoryCritical Infrastructure ProtectionPower ElectronicsInsulation SystemsLightning CurrentLightning ProtectionProtection SystemsSuperconducting MaterialsSuperconducting Thin FilmsFault Current LimitingFault Current ProtectionLightning Protection For Power SystemsLightning Protection Of Power LinesLightning Protection SystemsPolyimide InsulationShort-circuit ProtectionSuperconducting Tapes
Superconducting fault current limiters (SFCL) are designed to protect the electrical grid from faults that result from lightning strikes, downed power lines and other system interruptions. The rapid increase of impedance of the SFCL reduces the short current in the circuit. Several coreless constructions of inductive SFCLs have been tested. The space between the windings is the thick of the polyimide film kapton insulation to increase the coupling and reduces the leakage reactance. Both primary and secondary windings have been immersed in liquid nitrogen. The presented solutions reduce the size and the weight of the device. A few limiters based on HTS 1G and HTS 2G tapes has been described, tested and compared.
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