Institution: | a Los Alamos National Laboratory, MS J580, P.O. Box 1663, Los Alamos, NM 87545, USA b Pirelli Cavi & Sistemi, Viale Sarrazzz, 20126 Milan, Italy |
Abstract: | We report single-phase AC loss measurements on 8-, 4-, and 3-layer, multi-strand, HTS prototype conductors for power transmission lines. We use both calorimetric and electrical techniques. The agreement between the two techniques suggests that the interlayer current distribution in 1-m long conductors are representative of those in long conductors. The losses for the 8- and 4-layer conductors are in rough agreement, with the 8-layer losses being somewhat lower. The 3-layer conductor losses are substantially higher — probably due to unbalanced azimuthal currents for this configuration. |