The Yidu station in the 3000 MW Three Gorges - Shanghai project, China.

HVDC and HVDC Light

HVDC (High Voltage Direct Current) and HVDC Light are highly efficient alternatives for transmitting bulk power and for special purpose applications

The classic HVDC technology is used to transmit electric power over long distances by overhead transmission lines or submarine cables. It is also used to interconnect separate power systems, where traditional alternating current (AC) connections can not be used.

HVDC Light® is an underground and submarine cable power transmission technology developed by ABB, that offers additional benefits compared to HVDC Classic.

Read more basics about transmitting power by HVDC and HVDC Light here!

Direct shortcut to this page: http://www.abb.com/hvdc.

Product & Service Range

HVDC Classic HVDC Classic

HVDC Classic is used mainly for transmission of bulk power and AC system interconnections.

HVDC Light HVDC Light

HVDC Light - The invisible power transmission based on underground cables.

Service Service

Through the service organization for HVDC, ABB ensures continued support to the project throughout its lifetime. The unit is not limited to serve the ABB converter stations but also does upgrades of plants supplied by ABB or others.

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