变电站接地降阻设计的若干问题分析

结合工程实例,说明了降阻材料在实际工程中的应用要综合考虑降阻效果、防腐效果、长效性和稳定性等因素,认为GPF-94高效膨润土降阻防腐剂是具有优越的综合性能的降阻材料;水平外引在设计中需要考虑合适的位置、面积以及均压效果和使用寿命,使降阻得以科学、经济、安全地实现。

The Analysis of Several Problems of Reducing Grounding Resistance in Substation

With some engineering examples,it was illustrated that at the use of resistance reducing materials it should synthetically be considered the effect of resistance reducing effect,corrosion protection,long-term effective,stability and so on,It was considered that high-effective GPF-94 bentonite resistance reducing preservatives is a superior and comprehensive resistance reducing material with overall superior performance;Suitable location,area,voltage-balanced effects and life duration need to be considered in designing horisontally extended grounding grid,in order to achieve the resistance reduction scientifically,economically and safely.