Abstract
The most challenging issue today in transmission sector is the Right of Way (RoW) to lay transmission lines,
particularly in urban and semi urban areas. It is resulting in to delay in project schedule and congestion
in network in real time operation as load demand is growing every day. Moreover, forest and environment
clearances in some of lines, is another stumbling block. Engineers are, therefore, left with no option but
to work on EHV lines to use the existing corridors for uprating to higher power transfer capacity in such a
way that cost of MW power transfer/meter of RoW is optimum. Even for new lines, we have to select high
performance conductor, so that future load growth is taken care from day one.
This paper covers design study carried out for the selection of high performance conductor to suit existing
tower design to uprate the installed thermal capacity for new transmission lines from day one to avoid future
congestion.
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