【摘要】 对1000kV交流输电线路长串绝缘子,按照真型布置进行人工污秽工频耐受特性研究。其研究内容包括绝缘子串长与50%人工污秽工频耐受电压关系;普通型、双伞型绝缘子及异型串的污耐压特性;附盐密度SDD、附灰密度NSDD、上下表面不均匀积污比、串型、型式对污耐压特性的影响等。其研究结果对1000kV交流输电线路污秽外绝缘的合理设计及可靠运行具有重要的指导意义。更多还原

【Abstract】 This paper introduced the study on the withstand voltage characteristics of power frequency of artificial pollution in real layout for the long string insulators of 1 000 kV AC power transmission line. The content of study included the relation between the length of long string insulators and U 50% of the artificial pollution power frequency withstand voltage; the pollution withstand voltage characteristics for the standard insulator、double sheds insulator and special shape of string insulator; the influence of SDD、NSDD、the nonuniform pollution ratio of up and down surface string type and type on characteristics of pollution withstand voltage. The results of achievement have great significance for reasonable design and reliable operation of pollution external insulation of 1 000 kV AC power transmission line.更多还原