Ampacity project — Worldwide first superconducting cable and fault current limiter installation in a German city center

In recent years significant progress has been made in the development of high temperature superconducting (HTS) power devices, in particular cables and fault current limiters. Several field tests of large scale prototypes for both applications have been successfully accomplished and the technologies are getting closer to commercialization. In this paper the German AmpaCity project will be introduced and its objectives will be described. Furthermore, the conceptual design of the HTS cable system and the major developments which have been achieved so far, as well as the current status of the project will be reported.