Diagnostic Simplexes for Dissolved-Gas Analysis [PDF]
Energies, 2020 A Duval triangle is a diagram used for fault type identification in dissolved-gas analysis of oil-filled high-voltage transformers and other electrical apparatus.
James Dukarm +2 more
doaj +6 more sources
Dissolved Gas Analysis Equipment for Online Monitoring of Transformer Oil: A Review [PDF]
Sensors, 2019 Power transformers are the most important assets of electric power substations. The reliability in the operation of electric power transmission and distribution is due to the correct operation and maintenance of power transformers.
Mario Manana +2 more
exaly +3 more sources
Neural networks and particle swarm for transformer oil diagnosis by dissolved gas analysis. [PDF]
Sci RepThe lifetime of power transformers is closely related to the insulating oil performance. This latter can degrade according to overheating, electric arcs, low or high energy discharges, etc. Such degradation can lead to transformer failures or breakdowns.
Guerbas F +8 more
europepmc +2 more sources
Machine learning based multi-method interpretation to enhance dissolved gas analysis for power transformer fault diagnosis. [PDF]
HeliyonAccurate interpretation of dissolved gas analysis (DGA) measurements for power transformers is essential to ensure overall power system reliability. Various DGA interpretation techniques have been proposed in the literature, including the Doernenburg ...
Suwarno +3 more
europepmc +2 more sources
Novel Probabilistic Neural Network Models Combined with Dissolved Gas Analysis for Fault Diagnosis of Oil-Immersed Power Transformers. [PDF]
ACS Omega, 2021 Fault diagnosis technology of power transformers is essential for the stable operation of power systems. Fault diagnosis technology based on dissolved gas analysis (DGA) is one of the most commonly used methods.
Zhou Y, Tao L, Yang X, Yang L.
europepmc +2 more sources
Ni-Dispersed PdS2 Monolayer as a Potential Sensing Material for Dissolved Gas Analysis in Electrical Transformers: A First-Principles Study. [PDF]
ACS OmegaTo perform the dissolved gas analysis in transformer oil, in this work, we propose the Ni-dispersed PdS2 (Ni-PdS2) monolayer as a promising sensing material for three typical dissolved gases H2, CO, and C2H2.
Yu J +5 more
europepmc +2 more sources
First-Principles Insight into Pd-Doped ZnO Monolayers as a Promising Scavenger for Dissolved Gas Analysis in Transformer Oil. [PDF]
ACS Omega, 2020 ZnO monolayers with desirable n-type semiconducting properties are full of potential for sensing applications. In this work, we investigate using first-principles theory the adsorption and sensing behaviors of Pd-doped ZnO (Pd-ZnO) monolayers with two ...
Zhou Q, Zhang G, Tian S, Zhang X.
europepmc +2 more sources
Cu-Doped MoSe2 Monolayer: A Novel Candidate for Dissolved Gas Analysis in Transformer Oil. [PDF]
ACS Omega, 2020 Dissolved gas analysis (DGA) in transformer oil is a workable approach to evaluate the operation status of transformers. In this paper, we proposed a Cu-doped Se-vacancy MoSe2 (Cu-MoSe2) monolayer as a promising sensing material for DGA based on first ...
Yang S +5 more
europepmc +2 more sources
A review of optical gas sensing technology for dissolved gas analysis in transformer oil
Frontiers in PhysicsDissolved gas analysis (DGA) of transformer oil can deeply understand the operation status of oil-immersed transformers, and detect early transformer failures as early as possible, thus achieving the purpose of preventing further damage to the ...
Jialiang Dai +17 more
doaj +2 more sources
Research progress of online monitoring techniques for dissolved gas analysis in insulating oil [PDF]
Frontiers in ChemistryDissolved gas analysis (DGA) in insulating oil can achieve early warning of local discharge, overheating or arc failure in transformers. It can also quantitatively evaluate the aging degree of insulating equipment, providing a basis for formulating ...
Hua Mao +13 more
doaj +2 more sources