某超高压变电站接地网腐蚀原因诊断研究  

Diagnostic studies on grounding grid corrosion reason in 750 kV Substation

作　　者：杨洁[1] 李小娟[1] 周志军[1] 马超[1] 孟欢[1] 罗耘[1] 

机构地区：[1]国网甘肃省电力公司电力科学研究院,甘肃兰州730050

出　　处：《电力科技与环保》2016年第5期6-8,共3页Electric Power Technology and Environmental Protection

基　　金：国网甘肃省电力公司2014年度科研项目"750kV敦煌变接地网腐蚀原因诊断分析研究"(5227221350BS)

摘　　要：为找出新投运2年后的某750k V变电站接地网腐蚀严重的原因,通过现场埋片观测、土壤理化指标分析、接地网局部开挖检查、建设资料、运行状况分析等方法进行诊断研究,综合比较分析得出土壤腐蚀性在该变电站接地网腐蚀中占主导地位。根据该变电站的建设运行经验,对该类地区的电力接地网提出了针对性的腐蚀防护建议。ln order to find the reasons that a 750 k V substation grounding grid were seriously corroded for 2 years running,it investigated by burying specimen observation,soil physical and chemical index analysis,grounding grid local excavation,building materials and operational state,etc. Through comprehensive comparative analysis,the results show that soil corrosion is the dominant effect in the corrosion of grounding grid in the substation,and providing suggestion of corrosion protection for grounding grid.

关 键 词：超高压变电站 接地网腐蚀 诊断研究 腐蚀防护 

分 类 号：X591[环境科学与工程—环境工程]