European project on a self-limiting superconducting power link

Superconducting power links (SUPERPOLIs) will offer the opportunity for low-loss power transmission of high nominal currents and fault current limitation (FCL) simultaneously in one single device. They will find their applications as generator out-lines or in the medium voltage power distribution grid. As a significant step towards the GV A-class three-phase application, the first aim of the project is the demonstration of a one-phase functional model of length 2 m for 20 kVrms. 2 kArms/5 kArms operation; it will include the development of two alternative low-ac-loss conductor designs suitable for current limitation: a low-cost composite tubular Bi-2212 conductor with moderate Jc and a coated tubular Y-123 conductor, presenting a very high Jc. (author)