Ground Grid Retrofit for Substation in High Soil Resistivity Area
LI Yi-cang · Shaanxi Electric Power · 2009
Sandaohe substation is situated in a mountain area with strong lightning activity.High grounding resistance of the substation is unfavorable for anti-lightning protection.Through the demonstration and analysis,a retrofit scheme of ground grid in Sandaohe substation in high soil resistivity area is given.The scheme is implemented to make the structure of the ground grid more reasonable,meet the requirements of standard anti-accident measures,and ensure the safety and reliability of power equipment.