摘要
针对目前变电站接地问题日益突出、常用的降阻措施受到多方面因素制约等问题,对变电站接地降阻改造中采用自然接地体的方法进行了讨论,并结合福建某110 kV变电站接地改造的工程实例,分析了利用自然接地体作接地装置的合理性和优越性。认为接地工程中,充分利用自然接地体不仅能有效降低接地电阻,还具有省工、省料、接地电阻稳定、使用寿命长、安全可靠性高等突出优点;在接地装置设计时应充分考虑变电站周边的地理条件,巧妙、合理地利用自然接地体,以达到降阻的目的。
The current problems of substation grounding have become increasingly prominent, commonly used resistance reducing measures limited by various factors, and other issues, the use of natural grounding body in reducing substation grounding resistance is discussed, and combined with a Fujian 110 kV substation reconstruction case, the rationality and superiority of natural grounding device are analyzed. It is believed that in the grounding project, full use of natural grounding body can not only reduce grounding resistance, but also save time and materials, stable grounding resistance, extend using time, increase security and so on; the geographical conditions around substation should be fully taken into account during grounding device design, and natural grounding body should be reasonably used to reduce the grounding resistance.
出处
《电瓷避雷器》
CAS
北大核心
2011年第5期90-93,共4页
Insulators and Surge Arresters
关键词
变电站
自然接地体
降阻改造
接地电阻
降阻剂
substation
natural grounding body
resistance-reducing reconstruction
grounding resistance
resistance-reducing agent
