Estudo comparativo entre linhas de transmissão aéreas convencionais e compactas com vistas à faixa de segurança e capacidade de transmissão

Abstract

Nowadays the construction of conventional overhead power lines has faced several constraints, with the increasing need of reducing right-of-way limits, especially in urban areas, and increasing power flow within the same right-of-way of existing lines. In this context of restrictions, transmission lines compaction has become a possible option. This work investigates how new compact overhead power line technologies influence its electrical parameters, particularly, those which influence the right-of-way width calculation, such as surface gradient, electric field, audible noise, and radio interference, as well as those related to power flow capacity, that is, surge impedance and surge impedance loading (SIL). The results show that it is possible to reduce right-of-way width using compact configuration with reduced distances between phases, as well as improve power capacity.