Increasing the capacity of transmission lines via current uprating: an updated review of benefits, considerations and developments

Abstract: Constraints to power transfer in the network may limit the load that can be supported by the transmission lines. To overcome these constraints various current uprating methods can be used. This paper discusses the developments in the use of Dynamic Line Thermal Rating (DLTR) techniques to obtain a higher rating of conductors, the general considerations for thermal uprate and High Temperature Low Sag (HTLS) conductor usage in uprating