Proposta de melhoria da confiabilidade do sistema de alimentação de energia eléctrica na Internet Solutions, Matola

Abstract

Reliability in power supply systems within critical environments such as data centers has become one of the major challenges in modern infrastructure. In the case of Internet Solutions, located in Matola city, unexpected activations of the backup generator were recorded despite the presence of the public power grid, especially during peak consumption hours. This abnormal behavior highlighted the need to analyze, understand, and restructure the electrical supply system not only to ensure uninterrupted digital services but also to improve the technical and operational performance of the facility. Based on on-site observations, technical literature review, and operational data analysis, it was confirmed that voltage fluctuations from the public utility during peak hours were triggering unnecessary generator starts. Internal components such as the controllers, automatic transfer switch (ATS), and transformer showed no faults and operated within expected parameters, reinforcing the conclusion that the main issue was the instability of the utility voltage. In response, the installation of a three-phase automatic voltage regulator, properly dimensioned to match the system's characteristics, was identified as the most effective and regulatory-compliant solution. This approach not only prevents unnecessary generator activation but also protects sensitive loads, enhances energy efficiency, and promotes a more sustainable and reliable operation. The analysis process allowed for the integration of theoretical knowledge with practical experience, resulting in a technically sound, cost-effective solution that can be applied to similar settings.