乐滩水电站感应工频磁场干扰计算及分析

Computation and analysis of inductive power frequency magnetic field disturbances for the Letan Hydropower Plant

对水电站电磁干扰源的产生和影响进行详细阐述,并描述了具体的计算方法.针对乐滩水电站的具体情况进行电磁场干扰的分析,并以下游副厂房102.50m高程中央控制室、计算机室、继电保护屏室为例,进行了详细的计算和分析.最后提出水电站电磁干扰的一般性结论和防范措施.

Various electromagnetic disturbance sources arising from the hydropower plant and concrete computation methods are described in detail in this article.Working from the concrete situations of the Letan Hydropower Plant ,the paper analyzes the disturbances of the electromagnetic field for this plant.Comprehensive computation and analysis were made in conjunction with the central control room,computer room and room of relais protection panel located in the auxiliary building of the plant at eleva-tion102.50m,and these rooms were used as the study cases.Finally,a general conclusion about electromagnetic disturbances of the plant and protective counter-measures are made.