Results 51 to 60 of about 25,394,445 (190)

ANALISIS INDIKASI KEGAGALAN TRANSFORMATOR DENGAN METODE DISSOLVED GAS ANALYSIS [PDF]

, 2011
Permasalahan yang umum pada operasional transformator daya adalah timbulnya kegagalan, baik kegagalan termal maupun kegagalan elektris. Kegagalan termal dan kegagalan elektris umumnya menghasilkan gas-gas berbahaya yang biasa dikenal sebagai fault gas ...
Karnoto , Karnoto, Sukmadi, Tedjo, Faishal A.R, Muhammad   +2 more
core   +1 more source

cMOF‐Based Sensor for In Situ Detection of Oil‐Dissolved Gases: Sensing Characteristic and Defect Monitoring

High Voltage, EarlyView.
ABSTRACT In situ monitoring of oil‐dissolved gases without degassing in oil‐immersed equipment has become a promising approach. Herein, a direct sensing strategy utilising conductive metal–organic frameworks (cMOF) is proposed to develop a sensor capable of detecting multiple characteristic dissolved gases.
Zhiyong Lv, Lingfeng Jin, Xiang Li, Xiaolei Tan, Shi Jiang, Xianjun Shao, Zhicheng Wu   +6 more
wiley   +1 more source

Insulation system diagnosis in power transformers using DGA analysis and Megger DC

Ingeniería e Investigación
Dissolved gas chromatography (DGA) analysis and Megger DC insulation tests are performed to diagnose the condition of a power transformer. In this context, the objective of this study is to assess whether there is a relationship between both types of ...
Juan Sebastian Juris Zapata, Iván Camilo Durán Tovar, Josimar Tello Maita, Agustin Marulanda Guerra   +3 more
doaj   +1 more source

Internal Fault Diagnosis in Power Transformers Using Dissolved Gas Analysis and Deep Learning Technique [PDF]

هوش محاسباتی در مهندسی برق
The most common method for detecting internal faults in power transformers is the dissolved gas analysis (DGA) technique. The application of deep learning approaches in analyzing dissolved gases in oil faces challenges related to the scarcity of reliable
Mohsen Kariman Majd, Mohsen Niasati
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, Volume 36, Issue 89, 5 November 2026.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Analysis and interpretation of dissolved gases in transformer oil: A case study [PDF]

, 2012
Condition monitoring plays a vital role in any asset management plan. Dissolved gas analysis is a routine test carried out on power transformers to monitor their condition.
H. A. Fonseka, S. N. Hettiwatte, Fonseka, H.A., HA Fonseka (17984935), Hettiwatte, S.N., SN Hettiwatte (17961161)   +5 more
core   +1 more source

Structural Characterization and Immunomodulatory Activity of a Polysaccharide From Ipomoea batatas L. Vine: Activation of Macrophage

Food Science &Nutrition, Volume 14, Issue 11, November 2026.
IBPS‐3A, an acidic heteropolysaccharide purified from sweet potato vines, was structurally characterized to possess a backbone consisting of →4)‐α‐D‐GalpA‐(1→ and →2,4)‐α‐L‐Rhap‐(1→ linkages with arabinogalactan side chains. Further investigation revealed that IBPS‐3A induced M1 polarization in RAW264.7 macrophages, stimulating the secretion of TNF‐α ...
Yuqi Shi, Bo Si, Yu Shi, Wenxin Geng, Dunchi Xiao, Zhixiang Yuan, Liwen Li   +6 more
wiley   +1 more source

ANALISIS KEGAGALAN ISOLASI MINYAK TRANSFORMATOR 27 MVA PLTG 1 JAKABARING BERDASARKAN HASIL UJI DISSOLVED GAS ANALYSIS (DGA) [PDF]

, 2019
Metode indentifikasi kandungan gas yaitu dengan Dissolved Gas Analysis (DGA) merupakan metode konvensiona luntuk mengidentifikasi kandungan gas yang terlarut dalam minyak trafo.
Fithri, Normaliaty, Auliya, Januar Rizky
core  

Dissolved Gas Generation Characteristics of Dielectric Liquids Under Partial Discharges and Breakdown Sparks

High Voltage
With the growing interest in monitoring and diagnostic techniques for assessing transformer condition, dissolved gas analysis (DGA) stands out as a crucial diagnostic tool to detect electrical and thermal faults in liquid‐immersed transformers ...
Gechen Bian, Qiang Liu, Paul Jarman, Pascal Mavrommatis   +3 more
doaj   +1 more source

Mg2+ Ions as Interfacial Charge Bridges for Enhanced Photocatalytic Hydrogen Evolution in Poly(Heptazine Imide)

Small, Volume 22, Issue 61, 2 November 2026.
Mg2+ confined within poly(heptazine imide) acts as a heterogenized interfacial charge bridge capable to couple synergistically the semiconductor with Pt co‐catalysts, thus enhancing hydrogen evolution. Through water polarization and hydroxide stabilization, a dynamic Mg2+‐OHδ−‐Hδ+‐Pt motif facilitates proton transfer and overcomes interfacial electron ...
Gabriel A. A. Diab, Vitor G. S. Pastana, Sara Stolfi, Rayse M. Ferreira, Izadora F. Reis, Marcos A. R. da Silva, Caio V. C. Ribeiro, Kathrin Küster, Piero Torelli, Paolo Ghigna, Viola Duppel, Maurizio Fagnoni, Sebastian Bette, Bruna R. Serino, Andre F. de Moura, Davide Ravelli, Bettina V. Lotsch, Ivo F. Teixeira   +17 more
wiley   +1 more source