摘要
为了保证变电站及其周围的构筑物设施能安全地工作,基于接地系统地表电位和管道涂层耐受电压值这两个重要参数,文章分析了土壤结构、间隔距离变化时,变电站接地系统对周围接地系统和管道的传导干扰。结果表明,传导干扰随着间隔距离的增加而减少;在距离不变时土壤结构对传导干扰水平有着显著的影响;在传导干扰下,长管道的涂层耐受电压最大值受到管道涂层电阻的影响。
To make the substation and its neighboring metal objects work well,and based on two important parameters,i.e.the soil potential of grounding grid and coating stress voltage of pipeline,this paper analyzes the conductive interference of substation grounding system on other grounding networks or pipeline systems with different types of soil and the change of their separate distance.The results show that the conductive interference reduces with the increase of separate distance;the interference due to the soil type is outstanding in given separate distance;and the maximum coating stress voltage of a long pipeline is influenced with its coating resistance under the conductive intererence.
出处
《南方电网技术》
2010年第A01期90-93,共4页
Southern Power System Technology
关键词
地表电位
传导干扰
土壤类型
管道涂层耐受电压
earth surface potential
conductive interference
soil type
coating stress voltage
