Poles and Towers Category in Calculation of Counterattack and Lightning Resistance in Regional Power Networks
Tang Jun · Guangdong Electric Power · 2012
In order to accurately evaluate lightning resistance performance of transmission lines and improves calculation efficiency,calculation model of counteracctack and lightning resistance in regional power networks is established.By analysis of influence of voltage level,types of poles and towers,circuit number on model of transmission towers and poles,the paper discusses poles and towers in category.Transmission lines vary in accordance with insulation configuration,arrester shunt factor and coupling factor;circuit number and types of poles and towers have influence on establishing the model.In accordance with the difference above,poles and towers are categorized in accordance with voltage level,circuit number,types of pole and towers and calculation model of counterattack and lightning resistance level is established to show difference of lightning resistance of various poles and towers.