Temat: transformer winding - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Basic equations for analysis of a three-phase three-winding transformer subjected to asymmetric load
Autorzy:: Kasprzyk, L.
Stein, Z.
Zielińska, M.
Powiązania:: https://bibliotekanauki.pl/articles/97483.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: winding of the transformer
transformer
Opis:: The paper presents a set of equations enabling analysis of operation of three-phase three-winding transformers under asymmetric load. For a selected asymmetric state of such a transformer the computation leading to analysis of characteristic output parameters of the transformer is carried out with the help of the Mathcad software.
Źródło:: Computer Applications in Electrical Engineering; 2011, 9; 161-169
1508-4248
Pojawia się w:: Computer Applications in Electrical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Computer modeling in the diagnostics of transformers’ windings deformations
Autorzy:: Banaszak, S.
Gawrylczyk, K. M.
Powiązania:: https://bibliotekanauki.pl/articles/97341.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: transformer
computer model
winding of the transformer
frequency response
Opis:: The diagnostics of power transformers is very important in order to plan repairs and replacements of aged population of transformers operated in Poland and Europe. One of these methods is Frequency Response Analysis - FRA. It can detect any mechanical changes in active part of transformer, which may even lead to serious faults of units in service. As the method is based on comparison of measured curves, which are not always available from previous measurements the computer modeling was applied to create models of windings’ response. The paper presents examples of models created for simple windings and also for real transformer with some deformations of windings simulated.
Źródło:: Computer Applications in Electrical Engineering; 2010, 8; 132-140
1508-4248
Pojawia się w:: Computer Applications in Electrical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Vibroacoustic diagnostics of transformers in a transient state with reduced influence of magnetostriction phenomenon
Autorzy:: Kornatowski, E.
Powiązania:: https://bibliotekanauki.pl/articles/97533.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:: transformer
winding
Vibroacoustic Method
Spectral Subtraction Method
Opis:: In the paper a vibroacoustic method of diagnostics of the mechanical state of an active part of a transformer is presented. The analysis is performed on the signal of bank vibrations in a transient stage of work of an unloaded transformer - during the first few seconds after connecting to the power supply. The method is based on SSM algorithm (Spectral Subtraction Method) reducing the ‘disturbing’ impact of magnetostriction phenomenon on the measurement. It was concluded that using, in the process of diagnostics of an active part of a transformer unit, only the vibroacoustic method does not provide certain conclusions. Experimental research proved high usefulness of the presented V-SSM method (Vibroacoustic Spectral Subtraction Method) when accompanied by FRA method (Frequency Response Analysis) in winding defect diagnostics.
Źródło:: Computer Applications in Electrical Engineering; 2013, 11; 241-251
1508-4248
Pojawia się w:: Computer Applications in Electrical Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

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