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Influence of conductor designs and operating temperature on the economics of overhead lines
(1970)
Аннотация
Line designs have been prepared covering temperate and tropical conditions for an alternating voltage of
132-1500kV and a direct voltage of± 125 to ± lOOOkV. The conductors and bundle arrangements were selected
taking into consideration corona, radio interference and the factors which influence the current-carrying
capacity of a conductor. Evaluation of capital costs of lines and specific transmission costs have been carried
out for the above designs. The interrelationship between the conductor size, the load transmitted, the
conductor temperature and the specific transmission cost is shown for selected loads. For the typical parameters
assumed in the study, it is concluded that, for a given load, the optimum economic transmission cost
occurs with a relatively large area of conductor cross-section and at relatively low conductor temperature.
