冰灾对运行复合绝缘子性能影响研究  

Study on influence of ice disaster on properties of composite insulator

作　　者：黄福勇[1] 周卫华[1] 周挺[1] 王成[1] 

机构地区：[1]湖南省电力公司科学研究院,湖南长沙410007

出　　处：《湖南电力》2011年第3期1-4,共4页Hunan Electric Power

摘　　要：湖南是一个冰冻重灾区,冰冻灾害给电网的安全运行带来巨大危害,如大量的断线、掉串等。本文通过对运行复合绝缘子在冰冻灾害前后的机电性能试验研究,认为冰冻灾害前后复合绝缘子机电性能无明显变化,不存在遗留隐患,仍然能安全稳定运行,并提出在重冰区宜采用间插特大伞裙设计的防冰型复合绝缘子。Hunan is in a severe ice disaster area and it had produced serious harm to the safe and stable operation of power grid,such as power line breakage and insulator strings dropping.The mechanical properties test result shows that electrical and mechanical properties of composite insulators did not change significantly before and after freezing and there is no hidden trouble left after tests.It is strongly recommended that the anti-ice composite insulator with special shed should be adopted in the heavy frozen area.

关 键 词：冰冻灾害 复合绝缘子 机电性能 

分 类 号：TM852[电气工程—高电压与绝缘技术]