AC losses of filamentary HTS twisted filament round wires and flat tapes

F. Darmann, Rui Zhao, G. McCaughey, M. Apperley, T.P. Beales, C.M. Friend

IEEE Transactions on Applied Superconductivity · 1999 · 10 citations · 11 references

Concepts

Abstract

Samples of multifilamentary Bi-2223/Ag/alloy twisted filament tapes and Z stack round wires, consisting of untwisted and twisted stacks (or z-arrays) of flat filaments have been prepared. It was found that twist pitches of less than 10 mm may be incorporated into multifilament tapes while maintaining the Jc at 20 kA/cm/sup 2/. The self-field AC loss has been investigated at low frequencies up to 100 Hz. The round wire was found to exhibit isotropic electromagnetic properties.

References

11