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Performance documentation of the Engineering Model 30 cm diameter ThrusterPresented are the results of extensive testing of two 30-cm ion thrusters which are virtually identical to the 900 series Engineering Model Thruster in an ongoing 15,000-hour life test. Included are performance data for the nominal full-power (2650 W) operating point; performance sensitivities to discharge voltage, discharge losses, accelerator voltage, and magnetic baffle current; and several power throttling techniques (maximum Isp, maximum thrust/power ratio, and two cases in between). Criteria for throttling are specified in terms of the screen power supply envelope, thruster operating limits, and control stability. In addition, reduced requirements for successful high voltage recycles are presented.
Document ID
19770032249
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bechtel, R. T.
(NASA Lewis Research Center Cleveland, OH, United States)
Rawlin, V. K.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
November 1, 1976
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 76-1033
Meeting Information
Meeting: International Electric Propulsion Conference
Location: Key Biscayne, FL
Start Date: November 14, 1976
End Date: November 17, 1976
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
77A15101
Distribution Limits
Public
Copyright
Other

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