架空输电线路地线节能运行方式分析及选择  

Analysis and Selection of Ground Wire Energy Saving Operation Mode on Overhead Transmission Line

作　　者：高升 

机构地区：[1]福建博电工程设计有限公司,福建福州350003

出　　处：《福建建设科技》2016年第4期74-76,共3页Fujian Construction Science & Technology

摘　　要：架空输电线路地线上的电能损耗虽然在电网中的损耗所占比例不大,但是随着输电线路电压等级越高,线路越长,地线上的电能损耗就越大,因此如何降低地线损耗,合理选择地线的运行方式变的意义重大。本文通过分析了电能在地线上产生损耗的原因,并通过工程实例进行地线运行方式的全寿命周期比较分析,最终得出对架空输电线路采用分段绝缘的运行方式,并对地线进行合理换位,可有效地减少地线上的感应电压,使电线上的损耗降低到最小。Although the power loss on the ground wire of overhead transmission line is not large,but with the increasing of grade of power system,the line is getting longer and longer,the power loss on the ground wire becomes more and more remarkable. Therefore,research on its reduction and reasonable selection of the operation mode has great significance for energy saving. The cause of the electric energy loss has been analyzed,and through the whole life cycle of ground operation mode on the engineering example is compared and analyzed. It is determined that the operation mode of sectional insulation and reasonable transposition of the ground wire can considerably reduce the inductive voltage on the ground wire,then the power losses on the wire is reduced to a minimum value.

关 键 词：地线损耗 运行方式 分段绝缘 

分 类 号：TM75[电气工程—电力系统及自动化]