Evaluating thermal aging characteristics of electric power transmission lines

摘要: Assessment of aging characteristics conductors and other components power transmission networks plays an important role in asset management systems. Due to adverse effects conductor caused by annealing, the lose their tensile strength. Although loss strength is gradual, it accumulates over time increases probability outages blackouts. Therefore, most factor affecting operating temperature line. For this reason, keep track temperatures time, order identify segments network that may require more close attention, possibly repairs. This paper describes illustrates a new methodology for estimating thermal using load information weather conditions derived from historical reanalysis, interpolated locations lines. Conductor first determined IEEE 738 standard, then used estimate conductor. The process illustrated single location sample line, assumed current spanning period five years. simulation results show proposed approach provides vital procedures.