世博轴35kV地下变电站接地系统设计  

Grounding System Design of Expo Axis 35 kV Underground Substation

作　　者：朱敏智[1] 

机构地区：[1]上海市政工程设计研究总院,上海200092

出　　处：《现代建筑电气》2010年第9期14-17,共4页Modern Architecture Electric

摘　　要：接地系统设计对于保证上海世博会重要建筑——世博轴35kV地下变电站的安全可靠运行十分重要。详细介绍了世博轴接地系统设计方案。在人工接地网等间距和不等间距布置时,比较了接地网主要参数的变化。指出水平接地网的均匀优化设计能有效降低接触电压,改进接地系统安全性。The grounding system design is very important for the building of Shanghai Expo—Expo Axis 35 kV underground substation s safety and reliable operation.The grounding system schemes of Expo Axis was introduced in detail.The main parameters change of equal space and unequal space arrange in man-made grounding network were compared.It was pointed out that the uniform optimization design of horizontal grounding grid could effectively low the touch voltage,improve the safety of grounding system.

关 键 词：世博轴 地下变电站 接地电阻 最大接触电位差 最大跨步电位差 

分 类 号：TM862[电气工程—高电压与绝缘技术]