| Studies on the Effect of Accelerated Thermal Aging on Electrical and Physicochemical Properties of XLPE Cable |
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| 作者姓名： | 金天雄 金之俭 江平开 朱子述 刘飞 金义天 |
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| 作者单位： | [1]Shanghai Key Lab. of Electrical Insulation ＆ Thermal Aging, Shanghai Jiaotong Univ. , Shanghai 200240, China [2]Kim Chaek Univ. of Technology, Pyongyang, D. P.R. Korea [3]Inst. of High Voltage and Insulation Technology, Shanghai Jiaotong Univ. , Shanghai 200030, China |
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| 基金项目： | Major Research Project of Shanghai City(No. 045211024) |
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| 摘 要： | The degradation of crosslinked polyethylene (XLPE) cable insulation during service, such as thermo-oxidation and water treeing may lead to a premature electrical breakdown of the XLPE insulation cables. Therefore, it is necessary to optimize the period of replacement to evenly distribute the replacement cost by ascertaining the deterioration degree. Estimation of the aging degree is at present the most important task for diagnosis of the residual lifetime of the power cable insulation. This paper presents a study on the changes in the dielectric properties of the thermally aged XLPE cables in the frequency range from 0.07～10 MHz. Based on electrical and physicochemical characterization, some new "dactylograms" for the thermally aged XLPE cable insulation have been proposed.
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| 关 键 词： | 电子学设施 物理学设施 加热过程 聚乙烯 电缆绝缘 |
| 文章编号： | 1007-1172（2007）01-0091-05 |
| 修稿时间： | 2006-02-22 |
Studies on the Effect of Accelerated Thermal Aging on Electrical and Physicochemical Properties of XLPE Cable |
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| KIM Chon-ung,JIN Zhi-jian,JIANG Ping-kai,ZHU Zi-shu,LIU Fei,KIM Ui-chon.Studies on the Effect of Accelerated Thermal Aging on Electrical and Physicochemical Properties of XLPE Cable[J].Journal of Shanghai Jiaotong university,2007,12(1):91-95. |
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| Authors: | KIM Chon-ung JIN Zhi-jian JIANG Ping-kai ZHU Zi-shu LIU Fei KIM Ui-chon |
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| Abstract: | The degradation of crosslinked polyethylene (XLPE) cable insulation during service, such as thermo-oxidation and water treeing may lead to a premature electrical breakdown of the XLPE insulation cables. Therefore,it is necessary to optimize the period of replacement to evenly distribute the replacement cost by ascertaining the deterioration degree. Estimation of the aging degree is at present the most important task for diagnosis of the residual lifetime of the power cable insulation. This paper presents a study on the changes in the dielectric properties of the thermally aged XLPE cables in the frequency range from 0.07～10 MHz. Based on electrical and physicochemical characterization, some new "dactylograms" for the thermally aged XLPE cable insulation have been proposed. |
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| Keywords: | electrical and physicochemical properties accelerated thermal aging crosslinked polyethylene (XLPE) cable insulation |
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