Results 111 to 120 of about 3,735 (200)

High Voltage Power Transformer Dissolved Gas Analysis, Measurement and Interpretation Techniques [PDF]

open access: yes, 2013
Dissolved Gas Analysis (DGA) is widely accepted powerful tool in diagnosing power transformer health condition. Several DGA measurement techniques have been developed since 1950’s, from limited laboratory testing up to site online monitoring.
Abu Bakar, Norazhar, Abu Siada, Ahmed
core  

Detection of Incipient Faults in Power Transformers using Fuzzy Logic and Decision Tree Models Based on Dissolved Gas Analysis

open access: yesABUAD Journal of Engineering Research and Development
This paper proposes an integrated approach utilizing Fuzzy Logic and Decision Tree algorithms to diagnose early-stage faults in power transformers based on Dissolved Gas Analysis (DGA) test results of transformer insulation oil.
Felix Olowolafe   +1 more
doaj   +1 more source

UHF diagnostic monitoring techniques for power transformers [PDF]

open access: yes, 2004
This paper initially gives an introduction to ultra-high frequency (UHF) partial discharge monitoring techniques and their application to gas insulated substations.
Bennoch, C.J.   +3 more
core  

Enhancement of power transformer state of health diagnostics based on fuzzy logic system of DGA [PDF]

open access: yes, 2019
Aburaghiega, Ehnaish   +3 more
core   +1 more source

Enhanced fault detection in zig-zag transformers: Insights from dissolved gas analysis and transient current analysis

open access: yesResults in Engineering
This research article investigates the performance and fault detection capabilities of 35 zig-zag transformers connected to solar power plants in the medium voltage busbar, focusing on “dissolved gas analysis” (DGA) and fault diagnostics.
Ricardo Manuel Arias Velásquez   +1 more
doaj   +1 more source

The gas solubility problem in transformer oil [PDF]

open access: yes, 2017
It is generally recognized that the assessment of the technical state of power transformers based on the analysis of gases dissolved in oil (DGA) is an analytical diagnostic method with a wide range of detectable defects.
Davidenko, I. V.   +3 more
core   +1 more source

The characterization and removal of foam promoting impurities from blended methyldiethanolamine - piperazine solution using membrane [PDF]

open access: yes, 2009
The removal of acid gases from natural gas stream is an important process in many gas processing plants and for environmental protection. The most widely used acid gas removal technology nowadays is the absorption process using amine-based solvent ...
Ratman, Iwan
core  

Deep Machine Learning-Based Asset Management Approach for Oil- Immersed Power Transformers Using Dissolved Gas Analysis

open access: yesIEEE Access
Reliable operation of oil-immersed power transformers is crucial for electrical transmission and distribution networks. However, the aging of high voltage assets including power transformers along with the increasing of load demand have heightened the ...
Lan Jin   +3 more
doaj   +1 more source

Analysis of GT 2.1 Transformer Oil Testing using the Dissolved Gas Analysis (DGA) Method at PT PLN Nusantara Power

open access: yesG-Tech: Jurnal Teknologi Terapan
This study analyzes transformer oil from the GT 2.1 transformer at PT PLN Nusantara Power using the Dissolved Gas Analysis (DGA) method. Transformers are crucial for power systems, and their performance relies on the condition of their oil, which acts as both an insulator and a coolant.
Amsal Aritonang, Soni Prayogi
openaire   +1 more source

Electrochemical gas detection for dissolved gas analysis [PDF]

open access: yes
In a previous article, gas chromatography was described as the most popular method for Dissolved Gas Analysis (DGA) conducted in laboratories. In this article, we describe the established and prevalent DGA method for online and portable devices. Over the
Grisaru, Marius
core   +1 more source

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