Power system diagram which is shown in Fig. 1, provides electricity Angolan capital Luanda from Capanda hydroelectric power plants and Cambambe by three 220 kV LI-LIII lines length of about 180 km through the SS 220/60 kV Cazenga. Power consumed Luanda, is about 200 MW. Two intermediate 220/60 kV substation Viana and Camama, located 30 km from Cazenga, taken about 180 MW of power to supply the suburbs of the capital. The state of the power system was characterized by an overload of reactive power lines, unstable and low-voltage network and frequent, almost daily, disconnected consumers.
To normalize the regimes of 220 kV lines and increase their capacity, installation on 60 kV power bus of all three substations capacitor banks (3x10 MVAR at SS Camama and 6x10 MVAR at the substation Viana and Cazenga), as well as on the first two substations 220kV buses transformers type controlled shunt reactor has been offered.
Implementation of the project CSRT provides: