全户内GIS变电站接地材料的选择

介绍了变电站接地网系统的几种类型和接地材料,分别从导电性能、热稳定性和耐腐性等方面对比了接地材料的优缺点,并以2009年投产的太原解放220kV变电站新建工程为实例对比了不同接地方案,得出铜为主地网的接地系统符合全寿命周期的理念,其工程全寿命造价较低,能够满足接地网安全、稳定、可靠的要求。

Discussion on the Selection of Grounding Materials of Indoor GIS Substation

This paper introduces several types of the substation grounding system and the grounding materials,compares the advantages and disadvantages of these grounding materials from the conductivity,thermal stability,and decay resistance,etc.,and taking the new project of Taiuuan Jiefang 220 kV substation put into production in 2009 as an example,compares different grounding schemes,and gets the conclusion that the copper grounding system,which fully accord to the concept of life-cycle with lower construction cost,can meet the needs of the ground net for the safety,stability and reliability.