高土壤电阻率下冲击接地井的改造Reconstruction of Impulse Grounding System in High Soil Resistivity Area
王跃建,李春华
WANG Yue-jian, LI Chun-hua(Xin′anjiang Hydropower Station of East China Grid Company Limited
摘要(Abstract):
根据高土壤电阻率地区的具体情况,开挖深井,选用高硅铸铁、铜材为接地极,采用改性水泥、碳素材料为填充料,不仅使冲击接地井接地电阻达到较理想的值,同时能保持长期稳定,对减少雷击灾害、提高电网安全稳定运行起到了积极作用。
This article introduces an example of reconstruction for impulse grounding system in high soil resistivity area. With the earth pole made of high silicon cast iron or copper and improved cement or carbon powder as the filling in the grounding well, the impulse grounding system has a good result, and has kept a steady resistance till today.
关键词(KeyWords):
冲击接地井;接地电阻;高土壤电阻率;电极;改性水泥;碳素材料
impulse grounding; grounding resistance; high soil resistivity; earth pole; improved cement; carbon powder
基金项目(Foundation):
作者(Author):
王跃建,李春华
WANG Yue-jian, LI Chun-hua(Xin′anjiang Hydropower Station of East China Grid Company Limited
DOI: 10.19585/j.zjdl.2009.01.010
- 冲击接地井
- 接地电阻
- 高土壤电阻率
- 电极
- 改性水泥
- 碳素材料
impulse grounding - grounding resistance
- high soil resistivity
- earth pole
- improved cement
- carbon powder