摘要
针对高土壤电阻率地区变电站接地系统的接地电阻很难满足规程要求的问题,结合工程实例讨论了变电站的接地网设计方法。采用先进的接地系统辅助设计工具——CDEGS软件包对高土壤电阻率变电站的接地系统进行设计,接地电阻、接触电位和跨步电位的计算结果证明,该设计方法行之有效。
This paper analyzes the restriction of grounding system design based on the requirements of equipment safety and personal safety,and discusses the limitation of conventional design methods in high soil resistivity regions with a real engineering project.Thereafter,a design method based on the CDEGS design software is proposed.The proposed method is validated by the calculation results of the grounding resistance,contact potential step potential difference.
出处
《山东电力技术》
2010年第4期10-14,共5页
Shandong Electric Power
关键词
高土壤电阻率
接地网
变电站
high soil resistivity
grounding design
substation
