Analysis of Abnormal Problem of a Satellite Power-on Under voltage During Ground Electrical Test
This paper describes the problem analysis based on fault tree for the abnormal under voltage during the ground power testing phase of a certain model of satellite.The problem is located in the abnormal connection of the main power supply switch of the propulsion valve and the abnormal connection of the branch drive switch of the propulsion valve.After the satellite is connected to the propulsion equivalent,the power supply increases abnormally,resulting in undervoltage of the satellite bus.The problem mechanism is clear and has no impact on the satellite,and relevant improvement suggestions are proposed.
electrical testingunder voltage during power onfault tree analysis
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