Results 101 to 110 of about 3,735 (200)

Method-MS, final report 2010 [PDF]

, 2011
Radiometric determination methods, such as alpha spectrometry require long counting times when low activities are to be determined. Mass spectrometric techniques as Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Thermal Ionisation Mass ...
Nygren, Ulrika, Palsson, Sigurdur Emil, Popic, Jelena M, Roos, Per, Salminen, Susanna, Sigmarsson, Olgeir, Skipperud, Lindis   +6 more
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Occurrence of arsenic species in algae and freshwater plants of an extreme arid region in northern Chile, the Loa River Basin [PDF]

, 2017
This study reports data on arsenic speciation in two green algae species (Cladophora sp. and Chara sp.) and in five aquatic plants (Azolla sp., Myriophyllum aquaticum, Phylloscirpus cf.
Barbero Castro, Mercedes, Díaz-Palma, Paula, López Sánchez, José Fermín, Márquez, Anna, Pell i Lorente, Albert, Queirolo, Fabrizio, Rubio i Rovira, Roser, Stegen, Susana   +7 more
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Analysis of Transformer Oil Condition of Dissolved Gas Analysis (DGA) Testing Results with Modified Conventional Methods

International Journal of Electrical, Computer, and Biomedical Engineering
Power transformers are one of the most widely used important components in the electric power system. Dissolved Gas Analysis (DGA) testing is used to diagnose transformer failures before more severe damage occurs by analyzing gas indicators dissolved in transformer oil through several methods, one of which uses conventional methods.
Randy Purnawan Budhihadi, Budi Sudiarto
openaire   +1 more source

Electrochemical gas sensors can supplement chromatography-based DGA [PDF]

, 2008
Shortening a time gap between oil sampling and its analysis as well as a rapid and correct interpretation of dissolved gas analysis (DGA) results are crucial for effective screening of faulty transformers in predictive-oriented equipment maintenance ...
Zylka, P
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Improved Consistent Interpretation Approach of Fault Type within Power Transformers Using Dissolved Gas Analysis and Gene Expression Programming

Energies, 2019
Dissolved gas analysis (DGA) of transformer oil is considered to be the utmost reliable condition monitoring technique currently used to detect incipient faults within power transformers.
Ahmed Abu-Siada
doaj   +1 more source

Artificial Intelligence in Power Oil Transformers Diagnostics [PDF]

, 2013
Disertační práce se zabývá aplikací expertních systémů a softcomputingových metod v problematice diagnostiky výkonových olejových transformátorů. Práce je rozdělena na část teoretickou a část praktickou.
Janda, Ondřej
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Analyzing the influence of ZnO nanoparticles on transformer oil using dissolved gas analysis

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Transformer oil-based nanofluids have attracted considerable attention in recent years due to their improved thermal and dielectric properties, which are essential for the efficient and reliable operation of power transformers.
Abhijeet Lal, Anup Mishra, Anupam Agrawal, Rounak Kumar Tamrakar, Nagendra Tripathi, Sunil Kumar Chouhan   +5 more
doaj   +1 more source

Transformer Oil Quality Diagnostic Using Spectroscopy Techniques - a Review [PDF]

, 2019
Transformer serves as a vital component in the electrical energy supply system. In order to have an uninterrupted power supply, it is essential to timely monitor the condition of the transformer.
Deb, H. (Hironmay), Jidung, S. (Superdao), Naiding, M. M. (Mun), Nunisa, J. (Javin), Sarmah, D. (Dipankar)   +4 more
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Photoacoustic method: The contemporary premier method for dissolved gas analysis [PDF]

This article describes the tip of the iceberg of experience, research, debates, and understandings of photoacoustic spectroscopy applications since 2003 [13] when the first online and portable PAS devices appeared for dissolved gas-in-oil measurements ...
Grisaru, Marius
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Contribution to the Evaluation of Dissolved Gas Analysis in Power Oil Transformer Diagnosis [PDF]

, 2012
Disertační práce je zaměřena na hodnocení plynů rozpuštěných v oleji při diagnostice výkonových olejových transformátorů. Vychází ze známých, v normách, předpisech a literatuře uvedených skutečností a tyto doplňuje o nové poznatky.
Ministr, Martin
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