贵州省黄花寨水电站接地优化设计分析  

Design and Optimized Selection of Earthing System in Guizhou Huanghuazhai Hydropower Station

作　　者：郑丽 李伟 

机构地区：[1]贵州中水建设管理股份有限公司,贵州贵阳550002 [2]西安华鼎项目管理咨询有限责任公司,陕西西安710000

出　　处：《吉林水利》2013年第1期38-40,共3页Jilin Water Resources

摘　　要：将黄花寨水电站接地电阻的设计要求与现场实际情况相结合,对该站接地电阻偏高影响因素进行分析,探讨各种切实可行的降低接地电阻的方法,并提出相应的处理对策方案。电站第一台机投运前,采用交流电压、直流直线法测试现场接地电阻,测试结果表明:优化后的接地系统能够满足该站安全可靠运行性能指标要求。Combining the ground resistance requirement and the site actual situation, the factors which cause the station high grounding resistance are analyzed, and the appropriate countermeasures are proposed after discussing variety of grounding resistance reducing methods. The AC voltage and DC straight-line methods are utilized to test site grounding resistance before the first generator putting into operation, and the results show that： the grounding resistance of the optimized grounding system can meet the safe and reliable operation of the station performance requirements.

关 键 词：水电站 接地系统 接地电阻 降阻措施 

分 类 号：TM862[电气工程—高电压与绝缘技术]