In Brazil, in Foz do Iguaçu, there is a small section of 500 kV transmission lines that connects the Itaipu hydroelectric plant to the Foz do Iguaçu substation, a section of less than 10 km, where transmission towers exclusive to that location are used, and there are 8 500 kV lines. These towers resemble the 765 kV self-supporting towers in general shape, but have small differences in the detailed shape and lattice closure in the body of the structure.
For this reason, some people may confuse them with the 765 kV lines, but the detail of being before the Foz do Iguaçu substation helps to highlight the difference. The Foz do Iguaçu substation is a substation with two main functions, one is to receive four 500 kv 50 Hz lines and convert them into 600 HVDC, and the other part receives four 500 kv 60 Hz lines and transforms them into three 765 kv 60 Hz lines, which is the frequency applied in Brazil.
On the 50 Hz side, part of the energy is sold to Paraguay, with the surplus going to Brazil through the 600 HVDC lines that connect with the state of São Paulo, where it is dispatched to the south side of the capital of São Paulo. On the 60 Hz side, we have four 500 kv lines that transform into three 765 kv lines with 2300 MW of power each. These three lines also go to São Paulo near the east side of the capital to supply ten 345 kv lines to supply the site and three 500 kv lines for interconnection with the national 500 kv system that currently covers the entire country.
Негізгі бет BR 34. 500 kv Power lines in Foz do Iguaçu. (273)
Пікірлер: 86