AFRL's 1-Megawatt Superconducting Generator Successfully Completes Demonstration Published Sept. 25, 2007 By Propulsion Directorate AFRL/PR WRIGHT-PATTERSON AIR FORCE BASE, Ohio -- AFRL scientists and engineers successfully demonstrated the Multimegawatt Electric Power System (MEPS) 1-megawatt (MW) superconducting generator. The demonstration tested the generator's load up to 1.3 MW at over 10,000 rpm. The line-line voltages were 266 V-rms, and the currents were 1460 A-rms. The new MEPS generator achieved 97% efficiency, using input power from the torque meter and output power from the electrical data, as well as accounting for cryocooler losses. All test results indicate that the generator has a significant margin over the test points and that its performance is consistent with program design specifications. This 1 MW superconducting generator demonstration is the first successful full-power test of a superconducting generator for the Air Force.