Buscar
Mostrando ítems 31-40 de 1613
Effects of thermal annealing on the semi-insulating properties of radio frequency magnetron sputtering-produced germanate thin films
(Elsevier B.V. Sa, 2012-01-31)
We report the effects of thermal annealing on the semi-insulating properties of germanate thin films produced by a radio frequency magnetron sputtering process. Electrical and physical characterizations are presented. In ...
Effects of thermal annealing on the semi-insulating properties of radio frequency magnetron sputtering-produced germanate thin films
(Elsevier B.V. Sa, 2012-01-31)
We report the effects of thermal annealing on the semi-insulating properties of germanate thin films produced by a radio frequency magnetron sputtering process. Electrical and physical characterizations are presented. In ...
Análise da importância de controladores digitais na medição da temperatura do enrolamento em transformadores a óleo
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilTecnologia em Automação IndustrialUTFPR, 2015-04-10)
This work aims to present an analysis of temperature rise test on transformers associated with the definition of control parameters in the measurement and monitoring of temperature, oil transformers, focusing on the evolution ...
A new high voltage polymer insulator for electrical distribution system from oil of Mamoma trees.
(Institute of Electrical and Electronics Engineers (IEEE), 1995-01-01)
A new high voltage polymer insulator for electrical distribution system from oil of Mamoma trees.
(Institute of Electrical and Electronics Engineers (IEEE), 1995-01-01)
Desenvolvimento de um microforno elétrico utilizando controlador PID
(Universidade Tecnológica Federal do ParanáCuritibaBrasilDepartamento Acadêmico de EletrotécnicaEngenharia Industrial ElétricaUTFPR, 2015-07-15)
This project relays the building, programing, control, and analysis of an electrical micro-oven, with PID control implemented by a microcontroller. The micro-oven’s main usage is to execute maintenance of optic-fiber cables, ...
Behavior of an Inductive Loop Sensor in the Measurement of Partial Discharge Pulses with Variations in Its Separation from the Primary Conductor
(Mdpi, 2018-07-01)
Ideally, an insulation system must be capable of electrically insulating the active components of a machine or device subjected to high voltages. However, due to the presence of polluting agents or imperfections inside or ...
Desenvolvimento de metodologia para análise de arborescências em materiais dielétricos por contraste de fase de raios X
(Universidade Tecnológica Federal do ParanáCuritibaPrograma de Pós-Graduação em Engenharia Elétrica e Informática Industrial, 2013-09-17)
The water tree or electrical tree occurrence is identified as the main phenomena in the degradation in solid isolations of the electric energy distribution cables. The water tree evolution can lead to dielectric breakdown ...
Theory of non-steady state electrical characteristics of metal-insulator-metal structures with schottky barriers and exponentially distributed impurity states
(1996-12-01)
We discuss non-steady state electrical characteristics of a metal-insulator-metal structure. We consider an exponential distribution (in energy) of impurity states in addition to impurity states at a single energy level ...
Theory of non-steady state electrical characteristics of metal-insulator-metal structures with schottky barriers and exponentially distributed impurity states
(1996-12-01)
We discuss non-steady state electrical characteristics of a metal-insulator-metal structure. We consider an exponential distribution (in energy) of impurity states in addition to impurity states at a single energy level ...