高电压技术2012，Vol.38Issue(10)：2536-2541,6.
500kV复合绝缘子运行特性分析
Analysis of Operating Performance for the 500 kV Composite Insulator
摘要
Abstract
To analyze the performance characteristic of 500 kV composite insulators,which could provide reference for evaluating the performance and the status of composite insulators in service,5 pieces of 500 kV AC composite insulators and 6 pieces of 500 kV DC composite insulators were selected to be tested.The detection items included pollution measurement,hydrophobicity test,dissecting test,water diffusion test,water immersion test and steep front impulse test.Based on the tests,the contamination characteristics of the AC and DC insulators were compared and the relationship between insulators' operating years and its deterioration were studied.The application of different detection methods was also discussed.The results show that contamination of DC insulators is more serious than that of AC insulators.Moreover,contamination of DC insulators is significantly increased with the operation years,while that of AC insulators has no obvious change.Under the test conditions,there is no obvious relationship between the aging characteristics and the operating years of the tested insulators.Each of the evaluation methods is capable of reflecting a certain aspect of deterioration of composite insulators.关键词
复合绝缘子/检测/评估方法/憎水性/水扩散试验/自然污秽Key words
composite insulator/detection/evaluation method/hydrophobicity/water-diffusion test/natural contamination分类
信息技术与安全科学引用本文复制引用
张福增,宋磊,屠幼萍,许卓,李锐海,王国利..500kV复合绝缘子运行特性分析[J].高电压技术,2012,38(10):2536-2541,6.基金项目
特高压工程技术（昆明、广州）国家工程实验室开放基金 （）
