Results 71 to 80 of about 203,934 (147)

A Unified and Interpretable Benchmark of Classification Models for DGA-Based Power Transformer Fault Diagnosis

Applied Sciences
Power transformers are among the most critical components of electric power transmission and distribution systems, and unexpected failures can lead to substantial economic losses and prolonged power outages.
Kıvanç Doğan, Merve Ertarğın, Abuzer Çalışkan, Ayşenur Bakay   +3 more
doaj   +1 more source

A Hybrid Advanced Statistical Analysis and Decision Tree Algorithm Method for Power Transformer Fault Classification

Energies
Problems with power transformers reduce grid reliability and can lead to large financial losses. Traditional Dissolved Gas Analysis (DGA) methods, such as the Key Gas Method, Ratios, and Duval Triangle, often give unclear results when faults are complex ...
Bongumsa Welcome Mendu, Oluwafemi Emmanuel Oni, Omowunmi Mary Longe   +2 more
doaj   +1 more source

Dissolved Gas Analysis for Fault Prediction in Power Transformers Using Machine Learning Techniques

Applied Sciences
Power transformers are one of the most important elements of electrical power systems. The fast diagnosis of transformer faults improves the efficiency of power systems.
Sahar R. Al-Sakini, Ghassan A. Bilal, Ahmed T. Sadiq, Wisam Abed Kattea Al-Maliki   +3 more
doaj   +1 more source

Individual pay record book of duVal Allen, 1918-1919

, 1918
Book used by duVal Allen to record his pay as a soldier in World War I, with entries from October 1918 to March 1919.duVal Allen was a member of the Norwich University Class of 1919; he left school to serve as a volunteer ambulance driver in World War I.
Allen, duVal, 1896-1981;
core   +1 more source

La tour méridionale de la fortification hellénistique de Saint-Blaise à Saint-Mitre-les-Remparts (Bouches-du-Rhône)

Gallia
The Gallic settlement of Saint-Blaise (Bouches-du-Rhône, France) is a major archaeological site in Provence, located between the River Rhône to the west and the Greek foundation of Marseille to the east. The first excavations undertaken by H.
Sandrine Duval
doaj   +1 more source

Perbandingan Metode Roger's Ratio dan Metode Duval's Triangle Terhadap Kegagalan Transformator

Kualitas minyak transformator dapat diketahui dengan Dissolved Gas Analysis (DGA). Berdasarkan penelitian sebelumnya metode yang lebih unggul dalam menjawab kegagalan yang terjadi pada transformator adalah metode Roger’s Ratio dan Duval’s Triangle. Pada penelitian ini dilakukan perbandingan keefektifan dari kedua metode tersebut.
openaire   +2 more sources

Influence of nanofluid on performance improvement of dielectric properties and dissolved gases in oil-immersed power transformers. [PDF]

Discov Nano
Suboor A, Masood A, Khan AA, Urooj S, Zuberi MU, Khan SA, Rahman O, Parveen S, Bakhsh FI.   +8 more
europepmc   +1 more source

Probabilistic Prognostics and Health Management of Power Transformers Using Dissolved Gas Analysis Sensor Data and Duval's Polygons. [PDF]

Sensors (Basel)
Kashiwagi FN, Michalski MAC, de Souza GFM, da Silva HJB, Côrtes HM.   +4 more
europepmc   +1 more source

A capsid hinge region in European hepatitis E virus links mutations to genotype, virion surface properties, and environmental circulation. [PDF]

Appl Environ Microbiol
Kasmi S, Sautrey G, Hartard C, Quilès F, Bailly J-L, de Rougemont A, Jeulin H, Duval RE, Gantzer C, Schvoerer E.   +9 more
europepmc   +1 more source

Towards Precise Interpretation of Oil Transformers via Novel Combined Techniques Based on DGA and Partial Discharge Sensors. [PDF]

Sensors (Basel), 2021
Ward SA, El-Faraskoury A, Badawi M, Ibrahim SA, Mahmoud K, Lehtonen M, Darwish MMF.   +6 more
europepmc   +1 more source