Multishot Damage of Insulator in a Medium-Caliber and High Linear Current Density Launcher
Multishot Damage of Insulator in a Medium-Caliber and High Linear Current Density Launcher
复制标题
中口径高线电流密度发射装置绝缘子多发损伤
DOI：
10.1109/tps.2018.2889230
复制
发表时间：
2019-01
影响因子：
1.5
通讯作者：
Ping Yan
中科院分区：
文献类型：
--
作者：
Weikang Zhao;Rong Xu;Youjun Kong;Weiqun Yuan;Ping Yan
As an important part of pulsed high-current launcher, insulator takes the functions of electrical insulation and support. Surveys were conducted after multishot to analysis matrix damage and insulation performance of insulator based on a medium-caliber and high linear current density launcher. Mechanical damage of matrix is mainly related to local current. The most serious damage located at zone of flattop and initial decline stage. In addition, serious damage may be caused by sprayed molten aluminum rather than high-temperature plasma. Metal contamination is dominated by local current and contact condition of rail–armature. There are more metal deposits on surface of high current and high muzzle voltage zones, and corresponding flashover voltages decrease significantly. Considering the effect of different damage forms and the operation conditions, the main damage form is matrix ablation located at the contact position of rail–insulator rather than the degradation of electrical insulation. Moreover, the main damage form of bore insulators is different for variety of caliber and linear current density launchers. Insulation damage may be considered mainly in small-caliber and low linear current density launcher, while mechanical damage may be considered mainly in large-caliber launcher and high linear current density launcher.
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影响因子：
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影响因子：
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影响因子：
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