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A Proposal for Power Quality Management System

The increased sensitivity of equipment to electrical disturbances, the spread of nonlinear loads and the distributed generation are some of the factors that reinforce the importance of Power quality (PQ) to consumers and to distribution companies. Poor power quality can lead to equipment damage, interruptions and other consequences causing monetary losses most of the time. A good monitoring system is essential to guarantee power quality. Thus, more comprehensive and more efficient monitoring systems are desired by the electric utilities. In this context, this paper presents a review on the projects that have been developed by different utilities around the world, regarding power quality data monitoring and the management of these data from networks. Also, it presents a proposal of an automatic system for the management of power quality data to be implemented in the electrical grid of the Brazilian utilities EDP São Paulo and EDP Espírito Santo.