A Pathway to improve the loss in electric power grid by use of Superconducting Power Apparatus

The application of Superconducting cables and Superconducting Fault Current Limiter (SFCL) has been increasingly required with different technical needs: the large transmission current with low loss by the former and the protection against sudden operation failures by the latter. To meet these demands, related research and development have been still undergoing subjects with a view to improving stability of the power transmission system that becomes more complicated day by day highly requiring the reduction of transmission loss. In this article, the development and installation experiences in Korea are well described to share the difficulties in solving engineering challenges imposed on two core apparatus under service at KEPCO grid.