Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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柔性石墨复合接地材料冲击耐受特性实验研究

来源:电工电气发布时间:2016-08-18 10:18 浏览次数:8
柔性石墨复合接地材料冲击耐受特性实验研究
 
吴训松1,2,肖东1,赵习武1,2,王湘汉2
(1 三峡大学 电气与新能源学院,湖北 宜昌 443002;
2 中国电力科学研究院武汉分院,湖北 武汉 430074)
 
    摘 要:介绍了新型柔性石墨复合接地材料的组成及降阻原理,利用冲击及工频电流实验平台,在不同电流大小情况下分别对不同直径、不同长度、不同材料组成的接地体进行冲击和工频电流耐受实验。观察耐受前和耐受后各柔性石墨复合接地材料直流电阻的变化情况,实验数据分析表明,施加不同冲击及耐受电流时,相同长度以及材料组成相同的柔性石墨复合接地体,其直径大小对电阻的变化影响较大,随着柔性石墨复合接地体直径的增加,其电阻的变化特性逐渐趋于稳定,且柔性石墨复合接地材料的稳定性均强于圆钢以及固体石墨的稳定性。
    关键词:柔性石墨接地材料;冲击耐受;工频耐受;稳定性
中图分类号:TM862     文献标识码:A     文章编号:1007-3175(2016)08-0039-04
 
Experimental Study on Impact Resistance of Flexible
Graphite Composite Grounding Material
 
WU Xun-song1,2 , XIAO Dong1, ZHAO Xi-wu1,2, WANG Xiang-han2
(1 College of Electrical Engineering &New Energy, China Three Gorges University, Yichang 443002, China;
2 Wuhan Branch of China Electric Power Research Institute, Wuhan 430074, China)
 
    Abstract: Introduction was made to a new type of flexible graphite composite grounding material composition and the resistance reduction principle. The experimental platform of impact and power frequency current was used to carry out impact and power frequency current tolerance experiments for different diameters, different lengths and different material composition grounding bodies respectively under the conditions of different current sizes. Observation was made to direct current resistance changes of the flexible graphite composite grounding material before and after the tolerance. The experimental data shows that when the different impact and current tolerance exerted, the diameter sizes of the same length and the flexible graphite composite grounding body composed of the same material had bigger impacts on the resistance changes. With the increase of flexible graphite composite grounding diameter, the change characteristics of the resistance gradually stabilize and the stability of flexible graphite composite grounding material is stronger than that of round steel and solid graphite.
    Key words: flexible graphite grounding material; impact resistance; power frequency tolerance; stability
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