Results 31 to 40 of about 24,723,956 (329)

Dissolved Gas Analysis and Application of Artificial Intelligence Technique for Fault Diagnosis in Power Transformers: A South African Case Study

Energies, 2022
In South Africa, the growing power demand, challenges of having idle infrastructure, and power delivery issues have become crucial problems. Reliability enhancement necessitates a life-cycle performance analysis of the electrical power transformers.
Dr Bonginkosi Thango
semanticscholar   +1 more source

Power Transformer Fault Prediction using Naive Bayes and Decision tree based on Dissolved Gas Analysis

ENP Engineering Science Journal, 2022
Power transformers are the basic elements of the power grid, which is directly related to the reliability of the electrical system. Many techniques were used to prevent power transformer failures, but the Dissolved Gas Analysis (DGA) remains the most ...
Yassine Mahamdi, A. Boubakeur, A. Mekhaldi, Y. Benmahamed   +3 more
semanticscholar   +1 more source

A Deep Parallel Diagnostic Method for Transformer Dissolved Gas Analysis

Applied Sciences, 2020
With the development of Industry 4.0, as a pivotal part of the power system, large-capacity power transformers are requiring fault diagnostic methods with higher intelligence, accuracy and anti-interference ability.
Xiaoxin Wu, Yigang He, Jiajun Duan
doaj   +1 more source

Online dissolved gas analysis used for transformers – possibilities, experiences, and limitations

Elektrotech. Informationstechnik, 2022
At a time when the optimal utilization of resources is becoming ever more important, the condition monitoring of electrical equipment is also becoming increasingly essential.
Christof Riedmann, U. Schichler, Wolfgang Häusler, Wolfgang Neuhold   +3 more
semanticscholar   +1 more source

Analysis of the Content of Gases in Oil-Filled Equipment with Electrical Defects [PDF]

Problems of the Regional Energetics, 2018
Operational reliability assurance of oil-filled equipment is an urgent real-world problem, which is especially essential for the facilities that have exceeded their lifetime.
Shutenko O.V.
doaj   +1 more source

Power Transformer Diagnosis Based on Dissolved Gases Analysis and Copula Function

Energies, 2022
The traditional DGA (Dissolved Gas Analysis) diagnosis method does not consider the dependence between fault characteristic gases and uses the relationship between gas ratio coding and fault type to make the decision.
Xiaoqin Zhang, Hongbin Zhu, Bo Li, Ruihan Wu, Jun Jiang   +4 more
doaj   +1 more source

Analisis Perawatan Berkala Trafo Distribusi 800 kVA pada Rumah Sakit X Kota Tangerang

Elektrika, 2023
In Indonesia, electricity supply for buildings or buildings with needs above 200kVA requires a distribution transformer owned by the customer, so that electrical energy transactions are carried out on the medium voltage side of 20kV.
Ridho Alpha Kusuma, Jimmy Arimas Prayogo, Choirul Mufit   +2 more
doaj   +1 more source

Canonical Correlation Between Partial Discharges and Gas Formation in Transformer Oil Paper Insulation

Energies, 2012
Dissolved gas analysis (DGA) has been widely applied to diagnose internal faults in transformer insulation systems. However, the accuracy of DGA technique is limited because of the lack of positive correlation of the fault-identifying gases with faults ...
Jian Li, Shangyi Peng, Xi Chen, Weigen Chen   +3 more
doaj   +1 more source

Gaussian Process Multi-Class Classification for Transformer Fault Diagnosis Using Dissolved Gas Analysis

IEEE transactions on dielectrics and electrical insulation, 2021
Dissolved gas analysis (DGA) is widely used for oil-immersed power transformers as a conventional fault diagnosis tool. However, interpretation criteria from DGA assessment often depends on empirical discrimination from a specialist, which can render ...
Lin Wang, T. Littler, X. Liu
semanticscholar   +1 more source

d13C tracing of dissolved inorganic carbon sources in Patagonian rivers (Argentina) [PDF]

, 2005
The main Patagonian rivers (Colorado, Negro, Chubut, Deseado, Coyle, Chico, Santa Cruz and Gallegos) were sampled between September 1995 and November 1998 to determine their chemical and isotopic compositions, the origins of the suspended and dissolved ...
F. Brunet, Brunet, F., Stille, Peter, Gaiero, D., Depetris, P.J., Gaiero, Diego M., P. Stille, Probst, J.L., Brunet, Frédéric, F. Gauthier Lafaye, P. J. Depetris, Probst, Jean-Luc, Stille, P., Gauthier-Lafaye, F., D. Gaiero, J. L. Probst, Gauthier-Lafaye, François, Depetris, Pedro J.   +17 more
core   +1 more source