Proposta de melhoramento da rede de distribuição de baixa tensão no bairro Zona Verde C, Munícipio da Matola

Abstract

Following demographic growth and the consequent evolution of consumption, the distribution network has been reinforced and modernized, in order to respond to the improvement of the electrical network, as in the Zona Verde neighborhood “C” presents voltage fluctuations due to voltage drop problems, causing cuts frequent. This problem is associated with long low voltage cable runs. This area currently has 3 PTs, some of which are operating above of their nominal regimes. The neighborhood's PTs are powered by the infulene that provides a medium voltage of 33 kV and 0.4KV in BT. During peak hours from 5 pm to 10 pm, the voltage reaches 215 V at times far below this value, therefore, the end of this work consists of the need to guarantee quality in terms of continuity of energy supply electricity to consumers in the Zona Verde C neighborhood, Municipality of Matola with voltage nominal during peak hours, with the elimination of illegal connections because it will present the best modern practices for solving problems related to high voltage drops and overloads at transformation stations (PTs). The previous considerations lead to the need to study techniques for improvement of the low voltage electrical energy distribution network, as it will guarantee the supply of good quality energy to residents, as well as those who still do not benefit from electrical energy and causing electrical energy to reach to the consumer with desirable voltage levels that are 220/400 V for connections single-phase and three-phase respectively. The implementation of this proposal will improve the quality of energy supplied to consumers in green zone C.