Title :
Experimental and Numerical Analysis of Electrothermal and Mechanical Phenomena in HTS Tube of Inductive SFCL
Author :
Kozak, S. ; Janowski, T. ; Wojtasiewicz, G. ; Kozak, J. ; Glowacki, B.A.
Author_Institution :
Electrotechnical Inst. in Warsaw
fDate :
6/1/2006 12:00:00 AM
Abstract :
The superconducting fault current limiter (SFCL) can be successfully used to limit the short-circuit current level in electrical networks to 5 (or less) times of rated current level. The inductive SFCL works like transformer with shorted secondary winding in a shape of HTS tube. The SFCL 625-A consists of superconducting Bi-2223 tube (critical current=625 A at 77 K), iron core and copper primary winding. The numerical model using the thermal physical domain of CAD package FLUX2D has been used to analyze of temperature distribution in HTS tube during the fault. The numerical model using the magnetodynamic physical domain of FLUX2D package was used to analyze the mechanical force in HTS tube during fault. We attempt to provide explanation why HTS tubes quite often break during current limitation
Keywords :
bismuth compounds; calcium compounds; fault current limiters; high-temperature superconductors; lead compounds; numerical analysis; power engineering computing; power system CAD; short-circuit currents; strontium compounds; superconducting devices; temperature distribution; transformer cores; transformer windings; (BiPb)2Sr2Ca2Cu3O 10; CAD package FLUX2D; HTS Bi-2223 tube; copper primary winding; electrical network; electrothermal phenomena; inductive SFCL; iron core; magnetodynamic physical domain; mechanical force; mechanical phenomena; numerical analysis; short-circuit current; superconducting fault current limiter; temperature distribution; transformer; Electrothermal effects; Fault current limiters; High temperature superconductors; Iron; Magnetic analysis; Numerical analysis; Numerical models; Packaging; Shape; Transformer cores; FLUX2D; inductive SFCL; numerical modeling; superconducting fault current limiter;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.871268
