| XLPE电缆电树枝二次生长特性分析(英文) |
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| 引用本文： | 周湶,陈仕军,廖瑞金. XLPE电缆电树枝二次生长特性分析(英文)[J]. 高电压技术, 2009, 35(4): 796-801 |
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| 作者姓名： | 周湶 陈仕军 廖瑞金 |
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| 作者单位： | State;Laboratory;Power;Transmission;Equipment;System;Security;Technology;Chongqing;University; |
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| 基金项目： | Scientific Foundation for Outstanding Young Scientist of China，重庆市自然科学基金 |
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| 摘 要： | In order to study the growth characteristics of electrical trees in XLPE cable under secondary applied voltage, a short cable metal needle defect test device is adopted to study the growth characteristics of the new trees after the electrical trees in XLPE cable under the action of the voltage of 12 kV are influenced by secondary applied voltage (15 kV). The research results show that influenced by secondary applied voltage and voltage increase rate, there will be a peculiar "bush-branch" electrical tree in XLPE cable insulation layer and the new trees under secondary applied voltage have the characteristics of short initiation time, fast growth rate and narrow discharge channel, etc, which shows that secondary applied voltage has a great effect on the secondary initiation and growth of electrical trees in XLPE cable and it is an important factor of accelerating cable aging and breakdown.
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| 关 键 词： | XLPE cables electrical trees discharge channel growth characteristic partial high temperature and gas pressure insulation |
Analysis on Secondary Growth Characteristics of Electrical Trees in XLPE Cable |
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| ZHOU Quan,CHEN Shi-jun,LIAO Rui-jin,ZHANG Yun,,FU Jin,,YE Di. Analysis on Secondary Growth Characteristics of Electrical Trees in XLPE Cable[J]. High Voltage Engineering, 2009, 35(4): 796-801 |
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| Authors: | ZHOU Quan CHEN Shi-jun LIAO Rui-jin ZHANG Yun FU Jin YE Di |
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| Affiliation: | 1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology;Chongqing University;Chongqing 400044;China;2. Meishan Power Corporation;Meishan 620010;3. Yangjiaping Power Supply Bureau;Chongqing 400051;China |
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| Abstract: | In order to study the growth characteristics of electrical trees in XLPE cable under secondary applied volt- age, a short cable metal needle defect test device is adopted to study the growth characteristics of the new trees after the electrical trees in XLPE cable under the action of the voltage of 12 kV are influenced by secondary applied volt- age (15 kV). The research results show that influenced by secondary applied voltage and voltage increase rate, there will be a peculiar "bush-branch" electrical tree in XLPE cable insulation layer and the new trees under secondary ap- plied voltage have the characteristics of short initiation time, fast growth rate and narrow discharge channel, etc, which shows that secondary applied voltage has a great effect on the secondary initiation and growth of electrical trees in XLPE cable and it is an important factor of accelerating cable aging and breakdown. |
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| Keywords: | XLPE cables electrical trees ,discharge channel growth characteristic partial high temperature and gas pressure insulation |
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