摘要
接地网是维护变电站安全可靠运行的根本保证和重要措施。阐述常用接地网的降阻处理方法,对某110kV变电站接地电阻高的原因进行简要分析,对其接地网重新设计,并提出选用沥青路面结构。通过对接触电势和跨步电势的核算,表明接地网满足要求,有效地解决了变电站接地系统的安全性问题。
The ground grid is an important measure to maintain the safe and reliable operation of the substation. The common ways to reduce the grounding resistance are described, a brief analysis on the causes for the high grounding resistance in a 110 kV substation is given, and then it is proposed to use asphalt pavement structure to redesign the grounding grid system. Through the check computation of the contact potential and the step potential, this design can effectively solve the security issues of substation grounding system.
出处
《四川电力技术》
2010年第2期60-63,共4页
Sichuan Electric Power Technology
关键词
变电站
接地网
沥青
接触电势
跨步电势
substation
ground grid
asphalt
contact potential
step potential
