【摘要】 ±800kV直流输电线路是目前世界上尚未有的直流输电系统,国内外有关它的研究不多。外绝缘是特高压线路设计中的主要问题,它关系到线路的安全运行和工程投资。本文根据国内外现有的资料,分析和计算了±800kV直流输电线路外绝缘子所需的空气间隙和绝缘子片数,并建议耐张串和悬垂串可采用相同的绝缘子片数。更多还原

【Abstract】 At present±800kV D.C transmission line is still not ready- made in the world, and less research in this field. External insulation is a main problem in the UHV line design, which will influence safe operation and project invest of transmission line. According to the current information in china and over sea, in this paper, for designing±800kV D.C transmission line the necessary air clearance and the number of insulators per bunch are analyzed and calculated, and an advice that strain insulator-bunch can adopt the same number of insulators as overhang insulator - bunch is also given.更多还原