Research on the Surge Impedance Load of UHV Double Circuit Transmission Lines on the Same Tower
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Abstract
In this paper, we bring out the idea of "generalized single circuit transmission line" ——Treating two phases wich have the same electirc degress as one phase. On the basis of this idea, the relationship between the Surge Impedengce Load of UHVAC transmission line and phase arrangement, Sub-conductor Bundle Spacing, Sub-conductor Number, Sub-conductor section was calculated and analyzed. The optimization of Sub-conductor Bundle Spacing was also suggested in this passage. Also, this method could be expanded to the situation of multi-circuits on one tower.
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