Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 12 records found  1 - 10next  jump to record: Search took 0.03 seconds. 
1.
LONG-TERM STUDY OF CHANGES OF PHYSICO-CHEMICAL PARAMETERS OF TRANSFORMER OILS / Jaroszewski, M ; Pietruszewicz, M [ENY-ARTICLE-2012-329]
The average age of transformers in service is increasing and approaching the end of design life. [...]
http://zet10.ipee.pwr.wroc.pl/record/416/files/
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2.
Effect of Voltage Harmonics Content on Arrester Diagnostic Result / Jaroszewski, M ; Kostyla, P ; Wieczorek, K [ENY-ARTICLE-2008-180]
Diagnoses of HV arresters are usually based on an analysis of total leakage current harmonics. [...]
http://zet10.ipee.pwr.wroc.pl/record/230/files/
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3.
STUDY OF CONTACT ANGLE OF LIQUID ON SOLID SURFACE AND SOLID ON LIQUID SURFACE / SZYSZKA, D. [ISSN 0370-0798doi: 10.5277/gig121810 ] [ENY-ARTICLE-2013-355]
The paper presents a study on the phenomenon of wetting of minerals in the two cases where a wetted solid is placed on a liquid surface and a liquid is on a flat solid surface. [...]
http://zet10.ipee.pwr.wroc.pl/record/444/files/
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4.
Effects of Surface Modification of Polypropylene Foil on Polymer - Oil Interaction / Pospieszna, J ; Tyman, A ; Juchniewicz, J [ENY-ARTICLE-2008-229]
Physico-chemical interactions between the impregnating oil and the polypropylene foil (PP) are of great concern. [...]
http://zet10.ipee.pwr.wroc.pl/record/284/files/
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5.
Influence of thin layers on static electrification phenomena of materials for power transformers / Rottenberg, W ; Fleszynski, J ; Beroual, A [I07/1998/I-401] [ENY-ARTICLE-2008-088]
The static electrification phenomenon is investigated, using a test cell with a rotating metallic disk coated on both sides with thin layers (0,5 and 2 pm) of conducting, semiconducting and insulating materials, obtained by magnetron sputtering. [...]
http://zet10.ipee.pwr.wroc.pl/record/106/files/
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6.
Electrochemical gas sensors can supplement chromatography-based DGA / Zylka, P [I07/04/I-035DOI 10.1007/s00202-004-0230-x] [ENY-ARTICLE-2008-048]
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. [...]
http://zet10.ipee.pwr.wroc.pl/record/57/files/
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7.
Artificial rain test of outdoor long rod insulators / Chrzan, K L ; Streubel, H [ISBN 978-0-620-44584-9] [ENY-ARTICLE-2009-279]
Due to the decrease of industrial contamination emission nearly the whole territory of Poland belongs to the pollution class light. [...]
http://zet10.ipee.pwr.wroc.pl/record/347/files/
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8.
Distance Digital Algorithm Immune to Saturation of Current Transformer / Wiszniewski, A ; Szafran, J [I08/1989/I-044] [ENY-ARTICLE-2008-206]
Saturation of current transformers due to slowly decaying primary current D. [...]
http://zet10.ipee.pwr.wroc.pl/record/260/files/
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9.
Rapid dissolved gas analysis by means of electrochemical gas sensors / Zylka, P ; Mazurek, B [I07/02/I-021] [ENY-ARTICLE-2008-050]
Rapid, introductory analysis of gases dissolved in insulating oil DGA carried out in the field can help in effective screening of faulty transformers as well as minimising number of classical laboratory chromatographic DGA tests. [...]
http://zet10.ipee.pwr.wroc.pl/record/59/files/
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10.
DGA system utilising semiconductor gas sensors / Zylka, P ; Mazurek, B [RZ I07/99/I-448SPIE Proceedings Series, ISSN 0277-768X; Vol. 3730] [ENY-ARTICLE-2008-046]
Thermal and electric faults developing inside transformers lead to the generation of gaseous products dissolving in the insulating oil. [...]
http://zet10.ipee.pwr.wroc.pl/record/55/files/
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