HVDC converter transformers

ABB pioneered HVDC transmission technology in the 1950s. Being the undisputed leader for more than half a century, ABB continuously develops the HVDC technology to meet the demands of economic and sustainable transmission and integration of different electricity generation types. ABB HVDC transformers are at the heart of these systems.

The HVDC technology - high voltage direct current - is used to transmit electricity over long distances by overhead transmission lines or submarine cables. It is also used to interconnect separate power systems, where traditional AC connections cannot be used. HVDC transmission offers, for instance, controllability and low total investment cost compared to AC solutions for long-range transmission.

Over long distances, HVDC offers a cost effective alternative to AC transmission. By means of interconnecting links, existing generating plants in the networks are used more effectively so that construction of new power stations can be deferred. This makes economic sense while minimizing the environmental impact.

Why ABB?

  • ABB has delivered more than half of the world's projects
  • Has designed and manufactured more than 350 HVDC converter transformer units in the range 80-800 kV DC voltage range
  • ABB pioneered HVDC transmission technology in the 1950s

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