| 500 kV兰亭变电所接地网的技术改造 |
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| 引用本文： | 许非吾,徐国柱,沈京华,金祖山.500 kV兰亭变电所接地网的技术改造[J].华东电力,2005,33(7):88-90. |
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| 作者姓名： | 许非吾 徐国柱 沈京华 金祖山 |
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| 作者单位： | 浙江省送变电工程公司,浙江,杭州,310016;华东电力设计院,上海,200063;绍兴电力局,浙江,绍兴,312000;浙江省电力试验研究所,浙江,杭州,310014 |
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| 摘 要： | 降低高土壤电阻率地区大型变电站接地电阻受到普遍关注,介绍了浙江绍兴500 kV兰亭枢纽变电站接地网设计和首次改造的概况,讨论了降低接地电阻值的效果,对现行电力行业标准中规定的接地网不能满足R≤200/I时要求采取防止转移电位、验算接触电位差及跨步电位差等措施进行了分析.
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| 关 键 词： | 大型变电站 接地网 接地电阻 |
| 文章编号： | 1001-9529(2005)07-0088-03 |
| 修稿时间： | 2005年3月10日 |
Technical retrofit of ground grid for 500 kV Lanting Substation |
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| XU Fei-wu,XU Guo-zhu,SHEN Jing-hua,JIN Zu-shan.Technical retrofit of ground grid for 500 kV Lanting Substation[J].East China Electric Power,2005,33(7):88-90. |
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| Authors: | XU Fei-wu XU Guo-zhu SHEN Jing-hua JIN Zu-shan |
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| Affiliation: | XU Fei-wu~1,XU Guo-zhu~2,SHEN Jing-hua~3,JIN Zu-shan~4 |
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| Abstract: | To reduce the ground resistance of large substations in areas with high soil resistivity is attracting much attention. The ground grid design of 500 kV Lanting load-center substation in Shaoxing of Zhejiang is introduced, as well as its first retrofit. The effect of the reduction of the ground resistance is also discussed. It is stipulated in the prevailing electric industry standards that when the ground grid does not meet the requirement of R200/I, the measurements of preventing transferred potential, calculating contact-potential difference and step potential difference should be adopted. The above measurements are analyzed. |
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| Keywords: | large substation ground grid ground resistance |
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