Buscar
Itens para a visualização no momento 11-20 of 101
Metodologia para análise da coordenação e seletividade de dispositivos de proteção durante reconfigurações de redes de distribuição
(Universidade Federal de Santa Maria, 2014-03-28)
With the emergence of the concept of Smart Grid (SG), the Power Distribution Systems are undergoing major changes in the way it is operated, studied and analyzed. The breakthrough technology of measurement, automation, ...
Proteção de transformadores de potência eclassificação de transitórios elétricos por meio da transformada wavelet discreta
(Universidade Federal de Santa Maria, 2014-02-20)
This dissertation presents the development of an algorithm for classifying
electrical transients in power transformers for protection. Initially the main transient
involving power transformers were analyzed, with a special ...
Metodologia para análise da tarifa branca e da geração distribuída de pequeno porte nos consumidores residenciais de baixa tensão
(Universidade Federal de Santa Maria, 2014-02-28)
This Master s Dissertation presents the development of a methodology that analyzes the impact of the White Tariff considering the distributed generation to low voltage residential consumers. The White Tariff has the aim ...
Estimação fasorial aplicada a relés de proteção numéricos utilizando os métodos de ajuste de curvas e redes neurais artificiais
(Universidade Federal de Santa Maria, 2014-02-21)
This dissertation proposes two methodologies for the phasor estimation on protective relays in Electrical Power Systems. Firstly, a theoretical introduction of signal processing, the structure of a protective relay and ...
Modelagem da qualidade da água utilizando coeficientes bibliográficos e experimentais - aplicação ao Rio Vacacaí Mirim
(Universidade Federal de Santa Maria, 2014-01-17)
The use of the coefficient of reaeration and quantification of atmospheric reaeration templates for use in process water quality and can be determined by various methods or determined experimentally using formulas that ...
Avaliação de ferramenta de simulação da transmissão sonora para projetos de isolamento acústico em edificações habitacionais
(Universidade Federal de Santa Maria, 2014-07-19)
In July, 2013, Brazil s new standard, NBR15575:2013, began to require minimum
thermal, luminal, structural and acoustical performance levels in new constructions of
residential dwellings. Thus, computer programs that ...
Modelo teórico de gestão de energia para um frigorífico de aves
(Universidade Federal de Santa Maria, 2014-12-06)
The present study proposes a theoretical management system for energy efficiency, with the aim of guiding professionals or companies in the fridge branch to seek energy efficiency of their processes and may, after the ...
Estudo do comportamento de concretos asfálticos com diferentes tipos de agregados e cales
(Universidade Federal de Santa Maria, 2014-08-15)
Pavements are highly relevant structures in the current economic context and its performance
depends, among other factors, on the component of the materials of each layer of the structure.
One of the solutions studied ...
Implementação de interface de comunicação seguindo Norma IEC 61400-25 para aerogeradores
(Universidade Federal de Santa Maria, 2014-12-19)
With the fast economic development of the country, the energy consumption tends to increase significantly for the next years. Because of that, it becomes important to search for new alternatives technologies that are ...
Sistema de automação residencial de baixo custo com uso de rádio frequência
(Universidade Federal de Santa Maria, 2014-12-15)
This work presents a proposal of a home automation system, which will use as human-machine (HMI) interface a mobile device with Android operating system. This mobile/tablet communicates with a central (controller) installed ...