Nexans has announced it has been awarded a EUR20M contract by the IE Madeira consortium to deliver the overhead lines for the world’s longest power transmission link, Brazil’s Madeira River Power Interconnection.
This new HVDC link, the first of two, will transmit 3150MW of power produced by the Rondônia hydroelectric plant in northwest Brazil to São Paulo, Brazil’s main economic centre, over a distance of 2375km. HVDC transmission at 600kV is being used to minimize transmission losses over the long distance and the link will eventually comprise two parallel overhead lines. Nexans has been selected to provide the conductors for the first circuit by IE Madeira, a consortium comprising the utilities Furnas, Chesf and CTEEP.
The Madeira River Power Interconnection is a bipole circuit, with each pole comprising four overhead conductors. Overall, Nexans is supplying some 6700km – equivalent to 21,120 tonnes – of its All-Aluminium Conductor (AAC) for the project. Each conductor features 91 bare wires, with a diameter of 44.4mm.
AAC conductors are well established as part of the Nexans overhead line portfolio. However, a bespoke cross-section has been developed specifically for the Madeira River Interconnection project to provide the desired electrical and mechanical properties (breaking stress, elongation, linear thermal expansion coefficient for example) by taking into account the line’s construction conditions, such as topography and climate. The typical span between the towers will be 500m.
To ensure the total safety and effectiveness of the Nexans solution, an extensive evaluation programme, including creep, stress and stretch tests, among many others, was conducted in close consultation with IE Madeira.
The cable is being manufactured at three Nexans plants in Brazil, located in Americana (São Paulo State), Lorena (São Paulo State) and Rio de Janeiro (Rio de Janeiro State). The first transmission line is scheduled for installation in the last quarter of 2011, while the entire project should come on line by 2013.
“Nexans is proud to be involved in this major project for the energy and utilities industry in Brazil, as the Madeira River Interconnection will help create 43,500 direct and indirect jobs, as well as supplying nearly nine percent of the country’s energy requirement”, said Jorge Tagle, Nexans Executive Vice President South America Area. “The AAC conductors we are supplying are a perfect example of Nexans’ proven global capability to develop high technology transmission solutions to suit specific project requirements and to support them with local manufacture and service.”
The Madeira River Interconnection will set a new record as the world’s longest power transmission link, with a route length of 2375km across five states in Brazil and 86 towns and cities. The current record for an HVDC project at the moment in operation is also in Brazil – the 900km line from Itaipu Dam to Ibiuna in São Paulo State. The overall world record is for the 1000 km AC (alternating current) line between Inga and Saba in Zaire.This new HVDC link, the first of two, will transmit 3150MW of power produced by the Rondônia hydroelectric plant in northwest Brazil to São Paulo, Brazil’s main economic centre, over a distance of 2375km. HVDC transmission at 600kV is being used to minimize transmission losses over the long distance and the link will eventually comprise two parallel overhead lines. Nexans has been selected to provide the conductors for the first circuit by IE Madeira, a consortium comprising the utilities Furnas, Chesf and CTEEP.
The Madeira River Power Interconnection is a bipole circuit, with each pole comprising four overhead conductors. Overall, Nexans is supplying some 6700km – equivalent to 21,120 tonnes – of its All-Aluminium Conductor (AAC) for the project. Each conductor features 91 bare wires, with a diameter of 44.4mm.
AAC conductors are well established as part of the Nexans overhead line portfolio. However, a bespoke cross-section has been developed specifically for the Madeira River Interconnection project to provide the desired electrical and mechanical properties (breaking stress, elongation, linear thermal expansion coefficient for example) by taking into account the line’s construction conditions, such as topography and climate. The typical span between the towers will be 500m.
To ensure the total safety and effectiveness of the Nexans solution, an extensive evaluation programme, including creep, stress and stretch tests, among many others, was conducted in close consultation with IE Madeira.
The cable is being manufactured at three Nexans plants in Brazil, located in Americana (São Paulo State), Lorena (São Paulo State) and Rio de Janeiro (Rio de Janeiro State). The first transmission line is scheduled for installation in the last quarter of 2011, while the entire project should come on line by 2013.
“Nexans is proud to be involved in this major project for the energy and utilities industry in Brazil, as the Madeira River Interconnection will help create 43,500 direct and indirect jobs, as well as supplying nearly nine percent of the country’s energy requirement”, said Jorge Tagle, Nexans Executive Vice President South America Area. “The AAC conductors we are supplying are a perfect example of Nexans’ proven global capability to develop high technology transmission solutions to suit specific project requirements and to support them with local manufacture and service.”
The Madeira River Interconnection will set a new record as the world’s longest power transmission link, with a route length of 2375km across five states in Brazil and 86 towns and cities. The current record for an HVDC project at the moment in operation is also in Brazil – the 900km line from Itaipu Dam to Ibiuna in São Paulo State. The overall world record is for the 1000 km AC (alternating current) line between Inga and Saba in Zaire.