Applied superconductivity activities at siemens

A 35 m long semiflexible single phase ac test cable for 110 kV and 10 kA with full load terminations was successfully tested with respect to its cryogenic and electrical behaviour. Within the development of two-pole generators with output ratings from 1000 to 3000 MVA the electrical losses of appropriate field winding conductors are determined under transient operation conditions. The characteristics of a rotating bath cooling are investigated with special emphasis on stability problems. Experimental studies on structural rotor materials are also being carried out. In the course of our work on magnetic levitation a 17 tons test carrier has been levitated several times at an air gap of 100 mm and speeds up to 150 km/h. At present a linear synchronous motor with superconducting field windings and active track is just before completion and will go into operation late 1978. With regard to the future European fusion program and the US-DOE Large Coil Task (LCT) we have initiated activities on the development and fabrication of large D-shaped magnets.