Title :
A low loss NbTi multifilamentary composite conductor for A.C. use
Author :
Ogasawara, T. ; Kubota, Y. ; Makiura, T. ; Akachi, T. ; Hisanari, T. ; Oda, Y. ; Yasuköchi, K.
Author_Institution :
Nihon University, Kanda, Surugadai, Chiyoda-ku, Tokyo, Japan
fDate :
5/1/1983 12:00:00 AM
Abstract :
Investigations of a.c. losses and stability of a mixed-matrix NbTi multifilamentary conductor are presented. Fine filament size of 1.0 μm and a tight twist of 5.5 times the wire diameter 0.2 mm result in a time constant of the eddy current of 0.024 msec at 1.0 T. If this conductor is used in superconducting armature windings of rotating machines or in a.c. magnets, generating a maximum field of 1.0 T, economical benefits are expected at operation frequencies below 20 Hz.
Keywords :
Superconducting materials; Conductors; Eddy currents; Machine windings; Multifilamentary superconductors; Niobium compounds; Rotating machines; Stability; Superconducting filaments and wires; Superconducting magnets; Titanium compounds;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1983.1062362
