Abstract:
Demand for the electric power has been increasing rapidly due to human activities all
over the world. It is essential to generate, transmit and distribute the power
requirement to load centers as they demand. Therefore, Capacity of transmission
network needs to be increased frequently either by uprating, upgrading of existing
transmission lines or/and adding of transmission lines to the transmission network.
It is getting harder and harder to find routes for transmission lines due to increased
social objection cause due to their uncountable social impact and environmental
damage during the construction which cannot be totally compensated.
Therefore, requirement of delivering more power to the load centers through overhead
conductors has come to a discussion and large variety of new generation conductors
(HTLS - High Temperature Low Sag Conductors and LL-Low Loss conductors) are
introduced with the intention of mitigating some of the disadvantages shown by the
conventional conductors and to uprate and upgrade the existing transmission lines.
Among them, enhanced power capacity, low loss performance, improved conductor
sag behavior and anti-cohesiveness behaviors can be considered vital.
However, it can be observed that, conventional conductors are still used more
frequently for new transmission lines by power utilities around the world due to lack
of service experience in use of new generation conductors over conventional
conductors that have been given a greater service in power transmission.
Therefore, impact of new generation conductors for on techno economics of 132kV
double circuit transmission lines is studied by designing and modelling of transmission
lines for different ground terrains with different types of new generation conductors
over conventional conductor.
Accordingly, new generation conductors show promising results in overall techno
economic viability of transmission line over conventional conductors, and among them
low loss conductors show superior performance.
