Title :
Effects of DC transport currents on AC losses by the magnetically induced currents in Ag sheathed Bi(2223) tape
Author :
Suenaga, M. ; Fukumoto, Y. ; Wiesmann, H.J. ; Haldar, P. ; Budhani, R.
Author_Institution :
Dept. of Appl. Sci., Brookhaven Nat. Lab., Upton, NY, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
AC losses at 60 Hz for a Ag sheathed Bi(2223) by a magnetically induced current technique were measured as a function of applied AC field and DC transport current. The results were qualitatively in agreement with the theory, which is based on Bean critical state model, by T. Ogasawara, et al. (Cryogenics, Vol.19, Dec. 1979, pp.236-740). Possible sources for some quantitative disagreements between the results and the theory are discussed.
Keywords :
bismuth compounds; calcium compounds; composite superconductors; high-temperature superconductors; losses; magnetoresistance; silver; strontium compounds; superconducting tapes; 60 Hz; AC losses; Ag-Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ sheathed tape; Bean critical state model; Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O-Ag; DC transport current; magnetically induced currents; Bismuth; Current measurement; DC generators; DC motors; Electrical resistance measurement; Hysteresis motors; Loss measurement; Magnetic field measurement; Magnetic hysteresis; Magnetic losses;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
