| 高压直流电缆用纳米复合聚乙烯的研究 |
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| 引用本文： | 吴锴,陈曦,王霞,屠德民. 高压直流电缆用纳米复合聚乙烯的研究[J]. 绝缘材料, 2010, 43(4): 1-2,10 |
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| 作者姓名： | 吴锴 陈曦 王霞 屠德民 |
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| 作者单位： | 西安交通大学,电力设备电气绝缘国家重点实验室,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 高压直流电缆运行中的温度梯度效应导致电缆外绝缘层场强严重畸变,降低了绝缘的电气强度和使用寿命。通过添加1%纳米填料制备复合低密度聚乙烯(LDPE)绝缘材料,能有效消弱温度梯度场对LDPE绝缘中场强的畸变特性。同时,添加1%的纳米填料,不但未改变LDPE的直流击穿强度,且体积电阻率略有增加。
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| 关 键 词： | 低密度聚乙烯纳米复合材料 温度梯度 聚乙烯 空间电荷 |
A Polyethylene Nanocomposite Insulating Material for HVDC Cable |
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| WU Kai,CHEN Xi,WANG Xia,TU De-min. A Polyethylene Nanocomposite Insulating Material for HVDC Cable[J]. Insulating Materials, 2010, 43(4): 1-2,10 |
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| Authors: | WU Kai CHEN Xi WANG Xia TU De-min |
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| Affiliation: | WU Kai,CHEN Xi,WANG Xia,TU De-min(State Key Laboratory of Electric Insulation and Power Equipment,Xi'an Jiaotong University Xi'an 710049,China) |
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| Abstract: | During full load operation of HVDC cable,the temperature gradient across the cable thickness may lead to serious distortion of field strength at the outer surface of insulation layer,which will decrease the breakdown strength and service life of cable insulation.To solve the problem,a low-density polyethylene(LDPE) nanocomposite with 1% nano-filler was prepared which can effectively reduce the field distortion in LDPE under temperature gradient conditions.At the same time,the addition of 1% nano-filler did ... |
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| Keywords: | low-density polyethylene nanocomposite temperature gradient polyethylene space charge |
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