摘要
防雷工作是目前多雷区输电线路外绝缘的难题之一。文章从雷电基础参数、耐雷性能分析方法与评价标准及防雷改造措施等方面评估了广州电网输电线路防雷性能,指出用地闪密度研究雷电活动规律及指导线路防雷设计更加准确;用先导发展模型开发的面向生产技术人员的防雷性能计算平台友好且便于操作。利用所开发的耐雷性能计算软件和分层归类的方法,对500 kV蓄增甲线的耐雷性能进行了整体评估。
Lighting protection is still a problem for external insulation of transmission lines in large-lightening-intensity districts.According to the basic lightening parameters,analysis methods and evaluation criterion of lightening-proof performance,and lightening-protection improvement measures as well,this paper evaluates the lightening protection performance of transmission lines in Guangzhou Power Grid,pointing out that it is better to adopt flash density for lightening activity research and lightening protection design,and the computation platform for lightening protection performance developed with leader progress model has friend interface and is easy to handle for electrical technologists.By using the software and bed-classification method,the overall lightening-proof performance of 500 kV Xuzeng LineⅠ（from Pumped storage power plant to zengcheng station）is evaluated.
出处
《南方电网技术》
2010年第A01期85-89,共5页
Southern Power System Technology
关键词
输电线路
防雷
地闪密度
评估
transimission lines
lightening protection
flash density
evaluation
