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Análise comparativa entre isoladores elétricos vítreos, cerâmicos e poliméricos em linhas de transmissão de energia elétrica
(BrasilUFSMCentro de Tecnologia, 2022-08-25)
In the vast majority of cases, when consumers think of an electrical power system, the importance that electrical insulators play in the process of transmission and distribution of energy is
often overlooked. However, ...
Flashover phenomenon: an analysis with influence of the thickness of the layer pollution of the high voltage polluted insulators
(Institute of Electrical and Electronics Engineers (IEEE), 1994-12-01)
Results of the analysis of dynamic behavior of flashover phenomenon on the high voltage-polluted insulators are presented. These results were taken from a mathematical and an experimental model that introduce the variable ...
Thermal insulation of roofs by using multiple air gaps separated by insulating layers of low infrared emissivity
(Elsevier, 2020-01)
In recent work we have demonstrated the ability of a new thermal insulation design based on creating air cavities between parallel layers of insulation material with a low infrared emissivity (Expanded Polystyrene, 0.6) ...
Theory of electrical characteristics for metal-oxide-insulator Schottky barrier and metal-insulator-metal structures
(1990-12-01)
The metal-insulator or metal-amorphous semiconductor blocking contact is still not well understood. Here, the intimate metal-insulator and metal-oxide-insulator contact are discussed. Further, the steady-state characteristics ...
Theory of electrical characteristics for metal-oxide-insulator Schottky barrier and metal-insulator-metal structures
(1990-12-01)
The metal-insulator or metal-amorphous semiconductor blocking contact is still not well understood. Here, the intimate metal-insulator and metal-oxide-insulator contact are discussed. Further, the steady-state characteristics ...
Estudo da aplicação de isoladores elétricos em linhas de transmissão e subestações de acordo com o grau de poluição do ambiente
(Universidade Tecnológica Federal do ParanáCuritibaBrasilAutomação IndustrialUTFPR, 2020-02-21)
This paper aims to present the different types of electrical insulators available on the market for use in high voltage electrical systems and to characterize by the dielectric materials with which they are manufactured, ...
Insulator-to-metal transition driven by clustering of solitons in polyacetylene
(1997-03-15)
It's believed that the simple Su-Schrieffer-Heeger Hamiltonian can not predict the insulator to metal transition of transpolyacetylene (t-PA). The soliton lattice configuration at a doping level y=6% still has a semiconductor ...
Insulator-to-metal transition driven by clustering of solitons in polyacetylene
(1997-03-15)
It's believed that the simple Su-Schrieffer-Heeger Hamiltonian can not predict the insulator to metal transition of transpolyacetylene (t-PA). The soliton lattice configuration at a doping level y=6% still has a semiconductor ...