Overhead HVDC lines

HVDC > HVDC Classic > What is HVDC > Point to point transmission > Overhead lines

A DC line can take more power than an AC line of the same size.


The figure above compares two 3,000 MW HVDC lines for the Three Gorges - Shanghai transmission, China, to five 500 kV AC lines that would have been used if AC transmission had been selected. .

Last edited 2007-02-07
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A bipolar overhead line for DC needs only two insulated conductors instead of three for AC.
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