Recent progress on 70 MW class superconducting generators

Super-GM has been continuously developing 70 MW class superconducting model generators to verify the basic technologies required for the design and manufacture of a 200 MW class superconducting pilot generator. Three types of 70 MW class superconducting model generators, two slow response excitation type and a quick response excitation type, have been developed on the project. A test run for one of the slow response excitation type generators was completed successfully in December 1997. The other slow response excitation type generator is undergoing a verification test at the Super-GM Testing Center. On the other hand, factory test of the quick response excitation type rotor is finished. This paper describes the progress of the Super-GM activities together with the latest test results.