In 2008/09 Nexans SuperConductors GmbH made the step from R&D activities to the production of the first non-publicly funded fault-current limiter units. In close cooperation with two customers, Applied Superconductor Limited (ASL, UK) and Vattenfall (Germany), Nexans was able to design, produce and deliver two resistive superconducting limiter devices. Both devices are designed for the medium voltage grid and were tested at the high voltage and high power lab IPH in Berlin. The superconducting components of both limiters, coils of bulk MCP BSCCO-2212, have been designed and produced by Nexans.

No abstract

No abstract

Nexans SuperConductors has designed, built, tested and installed a number of such SFCL systems in different areas and cases of operation with various requirements and specifications from DNOs or power generation industry. The designs as well as the test and operation results are presented. Prospective short-circuit currents in the order of 50 kA have been limited to below 10 kA according to the design of the limiter. The limiters have shown reliable operation during field tests with durations of about one year each.

No abstract