Power transmission cable development for the space station Freedom electrical power system

Power transmission cable is presently being evaluated under a NASA Lewis Research Center advanced development contract for application in the space station Freedom (SSF) electrical power system (EPS). Evaluation testing has been performed by TRW and NASA Lewis Research Center. The results of this development contract are presented. The primary cable design goals are to provide: (1) a low characteristic inductance to minimize line voltage drop at 20 kHz, (2) electromagnetic compatibility control of the 20 kHz AC power current, (3) a physical configuration that minimizes AC resistance, and (4) release of trapped air for corona-free operation. >