Title :
Tests and Performance Analysis of Coreless Inductive HTS Fault Current Limiters
Author :
Kozak, J. ; Majka, M. ; Janowski, T. ; Kozak, S. ; Wojtasiewicz, G. ; Kondratowicz-Kucewicz, B.
Author_Institution :
Lab. of Supercond. Technol. in Lublin, Electrotech. Inst. in Warsaw, Lublin, Poland
fDate :
6/1/2011 12:00:00 AM
Abstract :
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.
Keywords :
power grids; superconducting fault current limiters; superconducting tapes; HTS 2G tapes; SFCL; coreless inductive HTS fault current limiter; electrical grid; leakage reactance; lightning strike; performance analysis; polyimide film kapton insulation; power line; secondary winding; superconducting fault current limiter; Circuit faults; Copper; Fault current limiters; High temperature superconductors; Superconducting films; Windings; Wire; Superconducting inductive fault current limiter; superconducting tape;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2101033
