摘要
对220 kV/110kV混压同塔四回路从塔形设计、防雷保护、场强和无线电干扰、运行维护特性等方面开展了应用研究。推荐比选后的方案作为塔形布置方案;论证相序优化后,电场强度、无线电干扰等指标能够满足环保要求;计算防雷水平较常规220 kV双回路下降19.8%,110 kV双回路下降9.8%;建议针对混压同塔四回路应采取相应的运行维护措施。
The quadruple-circuit transmission linen with dual voltage 220 kV/110 kV on the same tower is studied in terms of the design of the outlook, lightning protection, electric field intensity, RI and the operation and maintenance measures. Proposals are given after comparison of different shape of tower. It is also proved that the optimized phase sequence could ensure the environment proteetion requirement on the electric field intensity and RI being met. And calculation results showed that the lighting protection level was reduced by 19.8% , compared to traditional 220 kV double circuit design, while down 9.8% for 110 kV line. Proposals are given to implement corresponding maintenance measures to this type of lines.
出处
《华东电力》
北大核心
2009年第8期1288-1291,共4页
East China Electric Power
关键词
四回路
塔型
电场
防雷
运行维护
quadruple-circuit, shape of the tower
electric field
lightning protection
operation and maintenance
