TEST-RESULTS FOR A BI-2223 HTS RACETRACK COIL FOR GENERATOR APPLICATIONS

Testing, results and analysis of a Bi-2223 model superconducting gener ator coil produced under the DOE Superconductivity Partnership Initiat ive are presented. The test arrangement enables coil energization with de and transient currents over a range of operating temperatures to e xplore coil performance under conditions analogous to those that would be experienced by a superconducting generator field coil. Analytic ca lculations of coil ac and ohmic losses and temperature rise compare we ll with experimental measurements. Good performance is predicted for a typical 3-phase fault condition. Coil steady state and transient perf ormance can be predicted with confidence for full scale superconductor application.