Workers install insulator strings on new ± 500 kV line that will be
operated by AltaLink and run some 300 km near Edmonton, Alberta. When
complete, the two-pole line with neutral return will carry up to 3000 MW
of power in one of Canada’s fastest growing regions due to huge ongoing
investments in the local oil and gas sector.
CIGRE has recently looked at the challenges imposed by rapid growth
in demand for electrical power and published a number of important
documents on this topic. Among these is one that explores various
technologies that will allow significant increase in the transmission
capacity of power lines, including one published by Working Group
B2/C1.19 in form of technical brochure (No. 425) entitled “Increasing
Capacity of Overhead Transmission Lines – Needs and Solutions”. The
review is mainly addressed to system planners and the various solutions
discussed include greater application of HVDC systems.
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