Title :
Angular dependence of AC losses at power frequencies for a stack of Bi2223/Ag tapes
Author :
Chiba, T. ; Li, Q. ; Ashworth, S.P. ; Suenaga, M. ; Haldar, P.
Author_Institution :
Dept. of Appl. Sci., Brookhaven Nat. Lab., Upton, NY, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
AC losses for a stack of Bi2223/Ag mere determined as a function of the angle between the applied AC magnetic field and the tape face. The results were compared with the AC losses calculated using the Bean critical-state model. Although general qualitative behavior of the calculated as a function of the angle was in accord with measured values, the model failed significantly quantitative predictions of the losses.
Keywords :
bismuth compounds; calcium compounds; ceramics; composite superconductors; eddy current losses; high-temperature superconductors; magnetic field effects; magnetic leakage; silver; strontium compounds; superconducting tapes; AC losses angular dependence; Bean critical-state model; Bi2223/Ag tapes; power frequencies; Bean model; Conductors; Frequency; Laboratories; Length measurement; Loss measurement; Magnetic field measurement; Power systems; Predictive models; Superconducting coils;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
