Review of Physicochemical-Based Diagnostic Techniques for Assessing Insulation Condition in Aged Transformers

Autor: Abderrahmane Beroual, Yazid Hadjadj, J. S. N'Cho, Issouf Fofana
Přispěvatelé: Institut national polytechnique Félix Houphouët-Boigny, Institut National Polytechnique Félix Houphouët-Boigny, Université du Québec à Chicoutimi (UQAC), Ampère, Département Energie Electrique (EE), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
gas chromatography-mass spectrometry coupling
Control and Optimization
inhibitor content
Transformer oil
Computer science
020209 energy
furan
Energy Engineering and Power Technology
free radicals
interfacial tension
02 engineering and technology
lcsh:Technology
01 natural sciences
law.invention
DP
Electric power system
DGA
law
Insulation system
moisture
0103 physical sciences
0202 electrical engineering
electronic engineering
information engineering
particle count
diagnostics
dissolved decay products
UV/visible spectroscopy
Electrical and Electronic Engineering
Transformer
color/visual examination
Engineering (miscellaneous)
acidity
methanol
010302 applied physics
insulating oil/paper
Moisture
lcsh:T
Renewable Energy
Sustainability and the Environment
business.industry
[SPI.NRJ]Engineering Sciences [physics]/Electric power
Electrical engineering
Condition monitoring
turbidity
Reliability engineering
power transformers
FTIR spectroscopy
viscosity
HPLC
business
Energy (miscellaneous)
Zdroj: Energies
Energies, MDPI, 2016, 9 (5), ⟨10.3390/en9050367⟩
Energies, Vol 9, Iss 5, p 367 (2016)
ISSN: 1996-1073
Popis: International audience; A power transformer outage has a dramatic financial consequence not only for electric power systems utilities but also for interconnected customers. The service reliability of this important asset largely depends upon the condition of the oil-paper insulation. Therefore, by keeping the qualities of oil-paper insulation system in pristine condition, the maintenance planners can reduce the decline rate of internal faults. Accurate diagnostic methods for analyzing the condition of transformers are therefore essential. Currently, there are various electrical and physicochemical diagnostic techniques available for insulation condition monitoring of power transformers. This paper is aimed at the description, analysis and interpretation of modern physicochemical diagnostics techniques for assessing insulation condition in aged transformers. Since fields and laboratory experiences have shown that transformer oil contains about 70% of diagnostic information, the physicochemical analyses of oil samples can therefore be extremely useful in monitoring the condition of power transformers.
Databáze: OpenAIRE
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