Research and simulation of overhead power line uprating using advanced conductors

Due to the deregulation of the electricity market around the world as well as the great impact of renewable energy sources and climate change patterns, uprating of existing overhead power lines (OHPL) has become more popular. There are several methods that are widely used to uprate power lines (PL), but most of them are expensive. However, the use of the advanced conductors such as High Temperature Low Sag conductors (HTLSCs) could provide various technical and economical advantages for an effective operation of the PL. This paper presents the comparison results of both the traditional type conductors and HTLS conductors based on the evaluation of the line thermal rating (LTR) under several sets of local ambient conditions. These computations have been conducted on the basis of IEEE and CIGRE ampacity standards by using PLS-CADD software.