Buscar
Mostrando ítems 51-60 de 1613
High voltage optical sensor insulation using PLA (Polylactic Acid)
(2019-01-25)
Electric power systems, especially after the advent of smart grids, require intelligent voltage and current meters devoted to energy billing, control, protection and quality monitoring. Novel Optical Voltage Sensors (OVS) ...
La resistencia eléctrica - Materiales conductores, semiconductores y aislantes
(Servicio Nacional de Aprendizaje (SENA)Subdirección General de Operaciones. División Programación Didáctica., 2019)
Assessing degradation of power transformer solid insulation considering thermal stress and moisture variation
(Elsevier Science Sa, 2017-10)
This paper presents a novel method for estimating the degradation of solid insulation in power transformers, considering thermal ageing and paper moisture dynamics. Current ageing models are based on both, experimental ...
Evaporated thin films of insulating poly-(tetrabromo-p-phenylenediselenide)
(PERGAMON-ELSEVIER SCIENCE LTD, 2002)
It has been shown that thin insulating film at the interface transparent conductive oxide/organic electroluminescent film could improve the performance of organic electroluminescent diodes (OLED). Such insulating film can ...
Estudo da fotodegradação de borracha de silicone utilizada em isoladores para rede elétrica
(Universidade Tecnológica Federal do ParanáCuritibaBrasilBacharelado em QuímicaUTFPR, 2016-11-03)
The combination of properties provided by the silicone rubber (SR) makes this material widely used in the energy sector, especially in manufacturing insulators for transmission and distribution lines, replacing porcelain ...
Desenvolvimento de um circuito para monitoramento da resistência de isolamento de uma estação de recarga rápida para veículos elétricos
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2023-08-04)
In a fast charging station, it is mandatory, by technical standards, the monitoring of insulation resistances, preventing recharges from being carried out when there is danger of electric shock for consumers. This paper ...
Rapid assessment of transformer insulating vegetable oil quality using FTIR spectroscopy and chemometrics
(Soc Brasileira Quimica, 2022-06-15)
Although analytical techniques to assess the degradation of transformer insulation systems are well established, it is essential to develop fast and effective methodologies for monitoring the quality of power transformer ...