南方电网技术2017，Vol.11Issue(6)：35-41,7.DOI:10.13648/j.cnki.issn1674-0629.2017.06.006
输电线路增容导线弧垂特性真型试验研究
Full Scale Test Study on Sag Characteristics of Augmented Capacity Conductors for Transmission Line
李斌 1王国利 1刘磊 1厉天威 1廖民传 1党朋 2曾伟 2罗勇芬3
作者信息
- 1. 直流输电技术国家重点实验室(南方电网科学研究院),广州 510663
- 2. 上海电缆研究所,上海 200093
- 3. 西安交通大学电气学院,西安 710049
- 折叠
摘要
Abstract
With the diversification of requirements in transmission line construction and renovation projects, augmented capacity conductor will be applied to AC/DC transmission line project with multiple voltage levels.In existing transmission line design, the sag of transmission line are evaluated by empirical formula, which is verified merely in a 60 meters small span test in laboratory, and is quite different from the actual project.To understand the temperature rise and sag characteristics of typical conductors and provide basis for the selection of transmission line conductor, the first domestic 200 m large span transmission line on actual strain tower for full scale test is built in Kunming UHV engineering technology lab to study on the temperature rise and sag characteristics of four kinds of conductors, including one kind of ordinary aluminum clad steel conductor and three kinds of typical augmented capacity conductor: carbon-fiber aluminum conductor composite core (ACCC), aluminum clad invar core aluminum alloy wire, and aluminum clad steel core aluminum alloy wire.Results show that ACCC and aluminum clad invar core aluminum alloy wire have better arc sag characteristics, and there are obvious temperature transfer points.The temperature transfer point of ACCC is about 75 ℃, and the transfer point of aluminum clad invar core aluminum alloy wire is about 105 ℃.关键词
增容导线/弧垂特性/迁移点温度/大档距/真型试验Key words
capacity conductor/sag characteristics/transfer point temperature/large span/full scale experiment分类
信息技术与安全科学引用本文复制引用
李斌,王国利,刘磊,厉天威,廖民传,党朋,曾伟,罗勇芬..输电线路增容导线弧垂特性真型试验研究[J].南方电网技术,2017,11(6):35-41,7.
