Summary This paper presents a fuzzy strategy for voltage control in power distribution systems. This control system will act on the tap changer of power transformers. Fuzzy system techniques have been use to turn the voltage…
Summary With the purpose of increasing the operation reliability and optimization of transformer maintenance procedures, Eletronorte looks for implementing on-line monitoring systems for its substation assets. To do that, it is necessary to install reliable sensors…
Summary With the purpose of assuring good supply of Electric Power to its 1.3 million customers spread on a 406,800 km2 area, ANDE – Administración Nacional de Electricidad, which is the company in charge of the…
Summary Due to large quantity of cabling needed for implanting a monitoring and control system using conventional equipment, Escelsa Energias do Brasil adopted a system with a communication bus, connecting various sensors to a remote unit,…
Abstract Resolution ANEEL 505 made voltage supply limits even stricter. As a result, voltage regulation in some of ELEKTRO’s facilities was difficult, and satisfactory results were not being obtained with conventional regulation relays due to the…
Abstract The purpose of this paper is to study the results of the implementation of the pilot project power transformer use maximization, without compromising the service life of the equipment and the reliability of the electric…
Abstract This report presents the data obtained from deployment of two MO Moisture Monitors in an oil drying machine at Elektro’s Tatuí Substation. It also brings the comparison between the online readings of this equipment and…
Abstract The substitution of insulating mineral oils with fluids or plant origin in power transformers has awakened a high degree of interest in recent years. This is due to diverse factors such as the high flash…
Abstract The objective of this article is to show the advantages of modernization carried out in the voltage regulation systems and measuring temperature of 60 MVA power transformer. This project served as a pilot for the…
Abstract The changes in maintenance philosophy, with migration of maintenance actions from Preventive to Predictive have led to the adoption of On-line Power Transformer Monitoring Systems as one of the main tools used in learning about…