摘要
为了解决架空输电线路载流量计算方法与实际环境存在偏差的问题,通过对目前输电线载流量计算方法的分析,建立了与输电线所处实际环境一致的辐射散热计算方法,并在此基础上修正了架空输电线载流量的计算公式。研究结果表明,目前基于Morgan公式的载流量计算公式在计算架空输电线的载流量时过于保守,环境温度的降低和风速的提高可以使输电线载流量显著提高。
In order to solve the problem of deviation between the calculation method of the current-carrying capacity of overhead transmission lines and the actual environment,a calculation method of radiation heat dissipation consistent with the actual environment of transmission line is established by analyzing the calculation method of the current transmission line flow rate.On this basis,the calculation formula for the current carrying capacity of overhead transmission lines are corrected. The research results show that the current formula based on Morgan formula is very conservative when calculating the current-carrying capacity of overhead transmission lines,and the reduction of ambient temperature and the increase of wind speed can significantly increase the current carrying capacity of transmission lines.
作者
侯世春
姜德胜
Hou Shichun;Jiang Desheng(Electric Power Research Institute of State Grid Heilongjiang Electric Power Co.,Ltd.,Harbin 150030,Heilongjiang,China;Management Training Center of State Grid Heilongjiang Electric Power Co.,Ltd.,Harbin 150030,Heilongjiang,China)
出处
《四川电力技术》
2018年第4期82-84,共3页
Sichuan Electric Power Technology
关键词
输电线路
载流量
计算方法
改进
transmission line
current carrying capacity
calculation method
improvement
