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Electrical Characterization of a Space Station Freedom Alpha Utility Transfer Assembly
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English
Abstract
Electrical power, command signals and data are transferred across the Space Station Freedom solar alpha rotary joint by roll rings, which are incorporated within the Utility Transfer Assembly (UTA) designed and manufactured by Honeywell Space Systems Operations. A developmental model of the UTA was tested at the NASA Lewis Research Center using the Power Management and Distribution DC test bed. The objectives of these tests were to obtain data for calibrating system models and to support final design of qualification and flight units. This testing marked the first time the UTA was operated at high power levels and exposed to electrical conditions similar to that which it will encounter on the actual Space Station. Satisfactory UTA system performance was demonstrated within the scope of this testing.
Authors
Citation
Yenni, E., "Electrical Characterization of a Space Station Freedom Alpha Utility Transfer Assembly," SAE Technical Paper 929220, 1992, https://doi.org/10.4271/929220.Also In
References
- Yenni, E. J. Brush, A. S. “Power Cable Impedance Characterization,” NASA Lewis Research Center Electrical Systems Division Preliminary Test Report #6
- Gantose, D. L. “MIL-STD-1553B Communications Test Program for the Alpha Utility Transfer Assembly.” NASA LeRC Preliminary Information Report #267