Results 51 to 60 of about 3,816 (209)

Power Transformer Fault Diagnosis Based on Dissolved Gas Analysis by Correlation Coefficient-DBSCAN

open access: yesApplied Sciences, 2020
The transformers work in a complex environment, which makes them prone to failure. Dissolved gas analysis (DGA) is one of the most important methods for oil-immersed transformers’ internal insulation fault diagnosis.
Yongxin Liu   +4 more
doaj   +1 more source

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

open access: yesEnergies, 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.
Bonginkosi A. Thango
doaj   +1 more source

Identifying Faults in Power Transformers Based on Machine‐Learning Algorithms Compared With Other Techniques

open access: yesEnergy Science &Engineering, EarlyView.
General framework of ensemble learning technique for transformer fault diagnostics compared with traditional dissolved gas analysis methods. ABSTRACT This paper implemented a comprehensive variety of modern machine‐learning techniques, which were demonstrated to be effective in handling complex tabular data, generating accurate predictions, and ...
Osama E. Gouda   +3 more
wiley   +1 more source

Analisis Kualitas Isolasi Minyak Transformator 375 MVA dengan Interpretasi Rasio Roger, Segitiga Duval, Breakdown Test, dan Water Content Test

open access: yesTeknik, 2019
Transformator merupakan peralatan utama dalam pemasokan listrik dari unit pembangkitan menuju konsumen. Oleh karena itu, perlu perhatian khusus dalam pemeliharaan kinerja transformator agar tidak terjadi kerusakan pada transformator.
Abdul Syakur, Wildan Lazuardi
doaj   +1 more source

Analysis Effect of Loading on the DGA Results of the UAT 2A Transformer PLTU Paiton 1&2 for Optimizing Self-Use [PDF]

open access: yes, 2023
In this study, the analysis of the effect of loading on the DGA results of the Paiton UAT 2A transformer units 1 and 2 was carried out using the DGA (Dissolved Gas Analysis) test tool with the X-DGA kelman tool to determine the gas content contained in ...
Basri, Muhammad Hasan, Faisol, Muhammad
core   +1 more source

ANALISIS KARAKTERISTIK MINYAK TRANSFORMATOR MENGGUNAKAN PENGUJIAN DISSOLVED GAS ANALYSIS (DGA) PADA IBT 1 GARDU INDUK

open access: yesForistek, 2022
Electrical energy is an important factor to support people's lives. Electrical energy from the generator is channeled through a transmission line to the substation. Transformer (transformer) is a very important equipment in the electric power system. Inside there is oil which functions as an insulating medium and also as a cooling medium.
Agus Siswanto   +4 more
openaire   +1 more source

Water‐Energy Nexus: Benchmarking the Energy Efficiency of Drinking Water Treatment Plants Accounting for Heterogeneity

open access: yesSustainable Development, EarlyView.
ABSTRACT The assessment of energy efficiency in water facilities is receiving increasing attention as a key strategy in the transition toward an energy‐neutral urban water cycle. This study evaluates the energy efficiency of 146 drinking water treatment plants (DWTPs) in Chile by applying a latent class stochastic frontier analysis (LCSFA) to account ...
Alexandros Maziotis   +1 more
wiley   +1 more source

Evaluation Methodology, Numerical Verification and Retrofilling Procedure for Power Transformers to Ensure K‐Class Flame Retardancy and Environmentally Friendly

open access: yesHigh Voltage, EarlyView.
ABSTRACT With increasing demands for fire safety and environmental friendliness, retrofilling transformers with alternative insulating liquids has become a growing trend. However, retrofilling power transformers remains uncertain, as more residual mineral oil compromises K‐class flame retardancy, and its impact on environmental performance has yet to ...
Zhenfu Tang   +5 more
wiley   +1 more source

Determination of transformer performance index based on dissolved gas analysis [PDF]

open access: yes, 2010
Dissolved Gas Analysis (DGA) is the single most widely used and most effective test to determine transformer’s operation conditions. The detection of gases generated in the transformer is the first available indication of the transformer malfunction ...
Md. Zain, Zainol Alam
core  

Prediction of remaining life of power transformers based on left truncated and right censored lifetime data [PDF]

open access: yes, 2008
Prediction of the remaining life of high-voltage power transformers is an important issue for energy companies because of the need for planning maintenance and capital expenditures.
Hong, Yili   +4 more
core   +7 more sources

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