High-voltage direct current - Wikipedia
2021-11-28u2002·u2002A high-voltage, direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for the transmission of electrical power, in contrast with the more common alternating current (AC) systems.. Most HVDC links typically use voltages between 100 kV and 800 kV. However, a 1,100 kV link in China was completed …
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