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Brazil company commissions HVDC for long transmission link

Aug 5, 2009 - Transmission & Distribution World

The Abengoa Group has commissioned ABB for key technology for the world’s longest power transmission link to be constructed in Brazil.

The power highway will link two new hydropower plants in the northwest of the country with São Paulo, Brazil's main economic center, over a distance of 2,500 kilometers. Power will be transmitted at very high voltage (600 kV) to minimize transmission losses.

This will be the second transmission project in Brazil using HVDC (high-voltage direct current) at 600 kV. The Itaipu project, with two transmission lines built by ABB in 1984 and 1987, is the world’s highest-voltage DC power transmission system currently in operation.

ABB will provide two 3,150 megawatt HVDC converter stations, and an 800-MW HVDC back to back station to transmit power to São Paulo and the alternating current network in the northwest of the country. The stations are scheduled for completion in 2012 and are a part of the government’s Accelerated Development program.

HVDC has lower losses and a smaller footprint than traditional AC transmission systems, and is able to stabilize intermittent power supplies that might otherwise disrupt the grid. For these reasons, it is the technology of choice for long-distance transmission projects which can deliver electricity from remote generation sources to the centers where it is needed.

Abengoa is a technology-based company that applies innovative solutions for the sustainable development of the infrastructure, environmental and energy sectors. It is present in more than 70 countries, where it operates with its five Business Groups: Solar, Bio-energy, Environmental Services, Information Technology and Industrial Engineering and Construction.

Updated: 2016/06/30

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