Electric Automation
Mostrando 13-24 de 25 artigos, teses e dissertações.
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13. Aplicação da metodologia seis sigma para melhoria de processo utilizando automação industrial
The main objective of this work was the development and implantation of improvements in industrial process to manufacture preservatives using the Six-Sigma methodology. The motivation was the increasing number of employees that were withdrawn and reallocated due to Repetitive Strain Injury (RSI), because, further permanent damages caused to the employees, th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2008
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14. Study of IEC 61850 and its impact in substation automation system. / Estudo da IEC 61850 e o seu impacto no sistema de automação de subestações.
In current Substation Automation System, digital equipaments called IED (Intelligent Electronic Devices) are used with protection, automation and measurement functions incorporated. These devices, to exchange information among them, use serial communication buses with information transmitted in digital form through many procotols, many of them proprietary, m
Publicado em: 2008
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15. Automação como recurso de planejamento de redes de distribuição de energia elétrica. / Automation as resource for distribution systems planning.
Concerning the components of an electrical distribution network and their susceptibility to functional failures or need for maintenance actions, planning and project criteria should be adopted to assure continuity of energy supply even though some components may be out of work. Traditionally the power systems, especially in power transmission and distributio
Publicado em: 2008
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16. Conservação de energia em edificios comerciais atraves da implementação de dispositivos de automação / Conservation of energy in commercial buildngs through the implementation of automation devices
This work comes to present a panorama of the electric system found usually in commercial constructions of great load, with about thirty years of operation, that operate in way a little efficient for the current parameters, mainly in her air conditioning system. In that construction (in study), her system of environmental conditioning represents an increment
Publicado em: 2007
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17. DESENVOLVIMENTO E VALIDAÇÃO DE METODOLOGIA PARA AUTOMAÇÃO DA CALIBRAÇÃO DE MULTÍMETROS DIGITAIS / DEVELOPMENT AND VALIDATION OF METHODOLOGY FOR CALIBRATION OF DÍGITS MULTIMETERS
Objective: Develop and validate a methodology in adjust and calibration automation of digital multmeters, making it possible to reduce costs, with a better interaction with the user and the calibration system, allying remote service and, mainly, taking less time in the calibration. It also aims to increase the reliability and quality of these multimeters cal
Publicado em: 2007
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18. Análise de funções de um conversor de protocolos de comunicação para automação elétrica, baseado na utilização da linguagem de modelagem unificada. / Protocol functions analise for electric automation using unified modeling language.
The evolution of the development software techniques has brought improvements in the quality of the developed projects and in the reduction of the time for its development. The converters of protocols had been always developed through techniques analysis, project and structuralized programming. This work has for objective to study the characteristics of the
Publicado em: 2006
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19. Study of applicable technologies for residential electric energy metering automation in order to minimize losses. / Estudo de tecnologias aplicáveis à automação da medição de energia elétrica residencial visando à minimização de perdas.
In these days, the energy measurement system for residences in urban areas is carried out by eletromechanical meters, which are read manually. Several problems have been observed in this process, which we can emphasize: reading errors, difficulty to access the measurement place, outdated databases, etc. The reading and the measurement automation processes, b
Publicado em: 2006
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20. Software Scada as platform for the intelligent rationalization of electric energy in build automation / Software Scada como plataforma para a racionalização inteligente de energia elétrica em automação predial
This work proposal is to develop an intelligent system, that using building automation technology, and through the monitoring of variables generally neglected by traditional control systems, together with the strategy of a specialist control, generates a considerable economy on the consumption of electric energy in closed environments with air conditioning d
Publicado em: 2006
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21. Norma IEC61131-3: aspectos históricos, técnicos e um exemplo de aplicação. / IEC61131-3 standard: historical and technical aspects and an application example.
Este trabalho traça um panorama dos PLCs e tecnologias associadas em momentos anteriores e posteriores à publicação da norma IEC61131-3 e discute aspectos relativos à sua adoção. A aplicação deste norma pode trazer ganhos de produtividade no projeto e implementação de sistemas de automação industrial. Esta dissertação apresenta o caso do "Proj
Publicado em: 2005
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22. SISTEMA DE REGULAGEM DO ESFORÃO DE CORTE EM CHAPAS METÃLICAS COM VARIAÃÃO DE ESPESSURAS / SYSTEM OF REGULATION OF THE CUT EFFORT IN METALLIC PLATES WITH VARIATION IN THICKNESSES
This work presents the project of a system that can be applied under a punching operation with different thickness metal plates and the pressure variation, knowing that is one of the most used process in the mechanical industry conformation, it reaches the most efficient results applied to the studied process. The main is to consider a electropneumatic syste
Publicado em: 2005
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23. Desenvolvimento de dispositivo para calibraÃÃo de sensor de umidade do solo e aplicaÃÃo em sensores tipo tensiÃmetro eletrÃnico e resistÃncia elÃtrica / Development of apparatus for soil moisture calibration was developed and built (DCSUS) and application in sensors electronic type an electronic tensiometer and electric resistance.
Na apparatus for soil moisture calibration was developed and built (DCSUS). The moisture was controlled indirectly by controlling the soil water matrix potenctial using both a porous plate funnel and a pressure chamber system. A 3.0 m high tower wal built in steel and a scale installed on its top. The scale components were an I-bean articulated in its center
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/09/2004
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24. Modelagem das funções de uma subestação automatizada empregando modelos orientadosa objeto. / Modeling the functions of an automated substation with object oriented models.
This is a descriptive study concerning the modeling technique applying object-oriented models for a communication interface among the equipments in the field of an electric substation. The standard architecture UCA - Utility Communications Architecture and GOMSFE - Generic Object Models for Substation &Feeder Equipment are used, allowing the reduction of the
Publicado em: 2002