Aerial Power Lines
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Utilização de linhas de transmissão semelhantes no ensaio de energização de um tronco com pouco mais de meio comprimento de onda / Utilization of similar transmission lines on energization test of a trunk with a little more than a half-wavelength
O transporte de grandes blocos de energia elétrica através de longas distâncias que variam de 2500 a 3000 km impõe a utilização de soluções mais adequadas baseadas em linhas de transmissão não convencionais. Uma alternativa em corrente alternada (CA) é a linha com pouco mais de meio comprimento de onda, que para o caso brasileiro, cuja frequência
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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2. Projeto de um veículo aéreo não tripulado para pulverização aeroagrícola / Unmanned aerial vehicle design for agricultural aerial spraying
The Unmanned Aerial Vehicles (UAV s) have a variety of applications, wether monitoring of forest fires, power lines, traffic, crowds, but also can be used for aerial target military applications. Even though it is still somewhat restrict to civil application because of lack of regulation, such vehicles are being developed and studied in the academic sphere.
Publicado em: 2011
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3. Cruzetas de polímeros reciclados: caracterização dos materiais, análise numérica e ensaios de modelos reduzidos / Recycled polymer crossarms: characterization of the materials, numerical analysis and tests in reduced models
Nowadays, wood is still the most used material in crossarms of aerial power distribution lines in Brazil. However, it has caused problems to power utilities concerning (i) degradation due to defects and attacks of fungi and insects, (II) higher operational costs to replace damaged pieces and (III) environmental problems, as the raw material has become scarce
Publicado em: 2007
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4. Common information Model/eXtensible Markup Language (CIM/XML) to exchange data among Power Utilities Control Centers. / Common Information Model/eXtensible Markup Language (CIM/XML) na troca de informações entre centros de controle de energia elétrica.
This dissertation provides an analysis about the application of a data model based on IEC 61970 (CIM) standard a tool for exchanging operational and equipments information among different Electrical Power Utilities computing systems. The purpose of this standard is to create a mechanism for information exchange using XML, called CIM/XML a format specif
Publicado em: 2005
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5. ANALYSIS OF THE INSULATION OF AERIAL TRANSMISSION LINES SUBJECT TO VOLTAGE SURGES / ESTUDO DE ISOLAMENTO DE LINHAS AÉREAS DE TRANSMISSÃO SUBMETIDAS A SURTOS DE TENSÃO
Many aspects of an electric utility power system design must be evaluated in detail prior to construction and operation. The choice of insulation requirements on eletric utility system equipment is dictated both by the steady state conditions as well as by overvoltages which can occur on the system. Transmission lines, which are the way to carry energy, are
Publicado em: 1975