JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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Other TitleBasic laboratory test of arcing on satellite power cables
Author(jpn)Qu, Delu; 北村 倫基; 麻生 誠司; 奥村 哲平; 細田 聡史; Kim, Jeongho; Cho, Mengu
Author(eng)Qu, Delu; Kitamura, Tomoki; Aso, Seiji; Okumura, Teppei; Hosoda, Satoshi; Kim, Jeongho; Cho, Mengu
Author Affiliation(jpn)九州工業大学; 九州工業大学; 九州工業大学; 九州工業大学; 九州工業大学; 九州工業大学; 九州工業大学
Author Affiliation(eng)Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology; Kyushu Institute of Technology
Issue Date2005-06
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
Publication title第24回宇宙エネルギーシンポジウム 平成16年度
The Twenty-fourth Space Energy Symposium March 7, 2005
Start page87
End page91
Publication date2005-06
AbstractIn the Low Earth Orbit, cracks are often made at the power cable of a satellite by debris, heat cycle, etc. Triple junctions are formed from these cracks. Then arcs may occur. On a satellite, the cables of HOT and RTN are placed close to each other in many cases. Therefore, sustained arc may occur if arc tracking is formed. If sustained arc takes place, the cable is carbonized and burned out. At the worst case, it will spread to neighboring cables. If it becomes so, the satellite may lose power from the solar panel. The purpose of this study is to investigate the conditions by which self-sustained electrical discharge is generated on cables. An experiment was carried out in a vacuum chamber which simulated Low Earth Orbit environment. A substrate made of CFRP (Carbon Fiber-Reinforced Plastics) was used. The experiment was carried out by placing the cables with cracks on the CFRP surface or on Kapton facesheet over the CFRP. Sustained arcs were observed in both environments. In the test of simulating front surface, sustained arc occurred when the condition of the string voltage was 200 V and the current of line was 2.7 A. In the test of simulating back surface, because the CFRP substrate was exposed, trigger arcs occurred frequently. The arc plasma led to the sustained arc between the cable and the substrate.
Keywordspower transmission; power cable; spacecraft charging; electric discharge; sustained arc; harness; polyimide resin; arc discharge; solar cell; CFRP; 送電; 電力ケーブル; 宇宙機帯電; 放電; 持続放電; ハーネス; ポリイミド樹脂; アーク放電; 太陽電池; CFRP
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会

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