高电压技术2011，Vol.37Issue(5)：1274-1280,7.
750kV输电线路光纤复合架空地线的接地方式
Grounding Mode of Optical Fiber Composite Overhead Ground Wire of 750 kV
摘要
Abstract
The loop current and loop current losses on optical fiber composite overhead ground wire (OPGW) are remarkable due to the large transfer capacity and high load current of transmission line. We applied theoretical calculating and filed measuring method to research the relationship between grounding methods and loop current loss on OPGW of 750 kV transmission line. Calculation results and the actual line measurements are in good agreement. Results show that, among the three grounding methods, such as ground wire and OPGW grounding at every tower, ground wire segment-insulated grounding at one tower and OPGW grounded at every tower, and ground wire segment-insulated grounding at one tower and OPGW grounded transposition, the least loop current loss occurs in the third grounding methods. It is concluded that to change grounding methods of the OPGW grounding at every tower has better economic benefits.关键词
750kV/光纤复合架空地线(OPGW)/环流损耗/换位接地/计算方法/接地方式Key words
750 kV/ optical fiber composite overhead ground wire (OPGW)/ loop current loss/ transposition grounding/ calculation method/ grounding method分类
信息技术与安全科学引用本文复制引用
王倩,吴田,施荣,王守国,张林,胡晓菁..750kV输电线路光纤复合架空地线的接地方式[J].高电压技术,2011,37(5):1274-1280,7.基金项目
国家电网公司科技项目(SGKJJSKF[2008]505). （SGKJJSKF[2008]505）
