中国电机工程学报Issue(22)：5924-5932,9.DOI:10.13334/j.0258-8013.pcsee.2015.22.029
高海拔沙尘条件下750 kV输电线路导线电晕损失特性
Influence of Sandy Condition on Corona Loss Characteristic of the 750kV Bundle Conductors in High Altitude Area
摘要
Abstract
An investigation of corona loss characteristics of the 750kV bundle conductors in high altitude sandy condition was presented in this paper. Sand particles may influence corona loss characteristics of the bundle conductors of 750kV power transmission lines in Northwestern China, where sandy weather often occurs. Corona loss and discharge intensity of the conductors used in practice LGJ400-50 of the 750kV power transmission lines is measured with fiber-optic corona loss measurement system and UV detector based on the movable corona cage in simulated sandy weather conditions. Corona loss characteristics are analyzed as influenced by wind speed, sand concentration and sand particle size. The test results show that corona discharge becomes stronger in sandy condition. Wind speed in this paper has little influence on corona loss. Corona loss of 750kV power transmission line conductor is found to increase with sand concentration and sand particle size in this paper, when the other parameters are fixed.关键词
沙尘条件/750kV分裂导线/电晕损失/放电强度/风速/沙尘浓度/沙尘颗粒度Key words
sandy condition/750kV bundle conductor/corona loss/discharge strength/wind speed/sand concentration/particle size分类
信息技术与安全科学引用本文复制引用
朱雷,刘云鹏,耿江海..高海拔沙尘条件下750 kV输电线路导线电晕损失特性[J].中国电机工程学报,2015,(22):5924-5932,9.基金项目
国家自然科学基金项目(51277073)；国家863高技术基金项目(2012AA050802)。Project Supported by National Natural Science Foundation of China (51277073) （51277073）
The National High Technology Research and Development of China 863 Program (2012AA050802) （2012AA050802）
