Title :
Development of solenoid and double pancake windings for a three-phase 26 kVA HTS transformer
Author :
Wang, Y.S. ; Zhao, X. ; Li, H.D. ; Lu, G.H. ; Xiao, L.Y. ; Lin, L.Z. ; Guan, Y. ; Bao, Q. ; Xu, X. ; Zhu, Z.Q. ; Wang, Z.K. ; Dai, S.T. ; Hui, D.
Author_Institution :
Coll. of Phys. Sci. & Technol., Hebei Univesity, Baoding, China
fDate :
6/1/2004 12:00:00 AM
Abstract :
We prepared 6 coils from the stainless steel-enforced multifilamentary Bi2223/Ag tapes and studied their electromagnetic behavior for a three-phase 26 kVA (400 V/16 V, 37.5 A/937.5 A) transformer. The primary windings were solenoid coils consisted of 4 helically wound layers, and the secondary windings were consisted of 24 double pancakes connected in parallel with 3 layers, the strand of 6 windings was consisted of two parallel transposed multifilamentary tapes. A numerical analysis has been developed to predict the DC and AC behavior of the coils based on measurements of short samples and tested coils at 77 K. A comparison is made between the experiment and model calculation.
Keywords :
bismuth compounds; high-temperature superconductors; multifilamentary superconductors; silver; solenoids; superconducting coils; superconducting tapes; superconducting transformers; transformer windings; 16 V; 26 kVA; 37.5 A; 400 V; 77 K; 937.5 A; AC behavior; BiPb2Sr2Ca2Cu3O10-Ag; DC behavior; HTS transformer; cylindrical coil; double pancake windings; electromagnetic behavior; high temperature superconductor; multifilamentary Bi2223/Ag tapes; primary windings; secondary windings; solenoid coils; stainless steel; three-phase transformer; Content addressable storage; Critical current; High temperature superconductors; Magnetic fields; Multifilamentary superconductors; Solenoids; Steel; Superconducting coils; Superconducting films; Tensile stress; Cylindrical coil; distribution; double pancake; high temperature superconducting; transformer; winding;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.830319
