HVDC Itaipu
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The HVDC Itaipu is a HVDC transmission line from the Itaipu hydroelectric power plant to the city of São Paulo, Brazil. The project has two bipolar lines, which run from the converter plant at Foz do Iguaçu in Paraná to the static inverter plant São Roque near São Paulo. These lines were put in service in several steps between 1984 and 1987. Both lines operate at ±600kV and are built as overhead lines with a length of 785 and 805 kilometers. HVDC was chosen both because of the long transmission lines and also to allow interchange of power between the 50 Hz units on the Paraguayan side of the station and the 60 Hz grid in Brazil.
