广东500kV同塔四回线路空气间隙选择研究  

Study on Air Gap Selection for Guangdong 500 kV Quadruple-circuit Transmission Line on the Same Tower

作　　者：庄志伟[1] 朱文卫 

机构地区：[1]中国能源建设集团广东省电力设计研究院,广东广州510663 [2]广东电网规划研究中心,广东广州510308

出　　处：《广东电力》2013年第2期53-56,83,共5页Guangdong Electric Power

摘　　要：同塔并架多回输电线路可以提高输电线路走廊利用率、降低电力建设成本。广东电网拟在500kV五邑-狮洋线路工程中采用多段500kV同塔四回线路。基于此,对广东500kV同塔四回线路在各种工况下的相对地空气间隙、相间空气间隙、带电作业间隙的选择进行分析,从而提出合理的塔头控制尺寸,确保线路运行可靠性以及降低工程造价。Multiple circuit lines on the same tower are available to improve use ratio of aisle of transmission line and decrease electric power construction cost. Guangdong power grid is planning to adopt multistage 500 kV quadruple-circuit transmission lines on the same tower in 500 kV Wuyi-Shiyang line project. Therefore, this paper analyzes selections for relative air gap, inter-phase air gap and hot-line gap of Guangdong 500 kV quadruple-circuit transmission lines under various working conditions and proposes reasonable control sizes of tower head in order to ensure operational reliability of lines and reduction of project cost.

关 键 词：同塔四回线路 相对地空气间隙 相间空气间隙 带电作业间隙 

分 类 号：TM753[电气工程—电力系统及自动化]