Electrodes
Each bipole can be operated also as monopole and is equipped with a grounding electrode. The electrode lines of both bipoles are installed on wooden poles and consist of 2 x 689 mm2 1272 MCM conductors.
The electrodes for Foz do Iguaçu Station are situated at Santa Terezinha de Itaipu at 25°29′58″S 54°24′03″W / 25.49944°S 54.40083°W / -25.49944; -54.40083 (Santa Terezinha de Itaipu Grounding Electrode) and at Alvorada do Iguaçu at 25°23′32″S 54°27′43″W / 25.39222°S 54.46194°W / -25.39222; -54.46194 (Alvorada do Iguaçu Grounding Electrode) and are connected with 15.5 km respectively 16 km long lines with the converter station.
The electrodes for San Roque Station are situated at Córrego Boa Vista at 23°35′51″S 47°37′37″W / 23.5975°S 47.62694°W / -23.5975; -47.62694 (Córrego Boa Vista Grounding Electrode West) and at 23°35′49″S 47°37′06″W / 23.59694°S 47.61833°W / -23.59694; -47.61833 (Córrego Boa Vista Grounding Electrode East) and are connected with 66 km respectively 67.2 kilometres long lines with the converter station.
Read more about this topic: HVDC Itaipu