On May 18

2016

the first large-scale overseas green field power transmission concession project of State Grid Cooperation of China

the Brazilian Tries Pierce Power Transmission Project

was successfully put into operation. So far

the 5 sets of 500 kV series compensation capacitor complete sets（“SC”for short）operated at 500 kV Paranaita substation and 500 kV Rio Verde substation is our series capacitor compensation project abroad in commercial operation

with the largest number of installed units

the largest project volume and the largest accumulated capacity. After the stable operation of the overhaul cycle of the first equipment

China and Brazil worked closely in 2019 to carry out intercontinental coordinated overhaul work in batches on these 5 sets of SC as planned. As for the planned overhaul this time

the strict overhaul program is made in accordance with the technical feature of the equipment and the operation and maintenance record over the years.The overhaul work has been finished as the plan

the key performance of the whole equipment has been inspected and the potential operation risk of the series compensation device has been eliminated

which lays the foundation for the safe and stable operation of the next overhaul cycle of the equipment.