Integrated Automation Substation Lightningproof Grounding

With the comprehensive automation equipment substation development and application, lightning damage increase, strengthen the substation lightningproof grounding safety measures is very important.The transformer substation integrated automation of lightningproof grounding design with specific engineering status as the foundation, collect substation the region where the environment, meteorological and geological relevant information, analysis of concrete environmental conditions and the characteristics of the transformer substation, to design the correct lightning protection equipment and decorate, make the form of lightning protection and grounding protection.The transformer substation integrated automation of lightningproof grounding is to focus on secondary equipment lightningproof grounding. Through the analysis of the invasion, lightning damage from way grounding, shielding, equipotential connection, limiting and isolation and adopt comprehensive protection lightning protection, carries on the second.To realize comprehensive automation substation lightningproof grounding protection of important equipment is surge protector (SPD). Power system second lightning protection equipment design, evaluation, the risk to the surge protection zones reasonable setting, the SPD its residual pressure should be less than the protection zone is the facility voltage level, and lightning shock leave appropriate margin, so as to achieve the purpose of protection equipment.Based on the engineering application, the threat of substation integrated automation of yuwei and changhe becomes surrounded lightningproof grounding protection in the design and implementation of integrated lightning protection measures, puts forward the SPD second equipment configuration scheme.