Results of tests on components and the system of 1kWh/1MW module-type SMES

full system of 1 kWh/1 MW Superconducting Magnetic Energy Storage (SMES) ha s been completed early this year. This SMES is the first step to the realiz ation of practical SMES system for power line stabilization. Main points in its design are two module type arrangement of six coils having three coils and one converter as one unit of module, modified-D-shaped coils with mech anical supports, liquid helium vessel type cooling of coils, and high-tempe rature superconducting current leads. The first test experiment was carried out on the site recently. The above design points were examined. A prelimi nary test for power line control was also made in the distribution line at the site. Satisfactory results were obtained.