MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS

The model is proposed for the calculation and research of steady state asymmetric modes and transients in three-phase three legs transformer devices with arbitrary diagram of windings connection, taking into account the electromagnetic coupling of the windings, located on different legs. Using as an...

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Main Authors: Bosneaga V.A, Suslov V.M.
Format: Article
Language:English
Published: Academy of Sciences of Moldova 2013-08-01
Series:Problems of the Regional Energetics
Subjects:
Online Access:http://journal.ie.asm.md/assets/files/m71_2_247.pdf
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author Bosneaga V.A
Suslov V.M.
author_facet Bosneaga V.A
Suslov V.M.
author_sort Bosneaga V.A
collection DOAJ
description The model is proposed for the calculation and research of steady state asymmetric modes and transients in three-phase three legs transformer devices with arbitrary diagram of windings connection, taking into account the electromagnetic coupling of the windings, located on different legs. Using as an example distribution transformer of 10/0.4 kV calculations and analysis were performed of the most characteristic steady asymmetrical modes, that occur during short circuit, phase failure, unbalanced load for the most common windings connections and, in particular, associated with the occurrence of zero sequence magnetic flow. For the considered regimes and schemes vector diagrams were constructed for currents and voltages as well as for the relative values of magnetic flow, which give a clear idea about their particular features.
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spelling doaj.art-0d43fcc63f9948cd8ce6adac371ea0db2022-12-22T03:12:10ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702013-08-012013-22(22)3850MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONSBosneaga V.A0Suslov V.M.1Institute of Power Engineering of the Academy of Sciences of Moldova Chisinau, Republic of MoldovaInstitute of Power Engineering of the Academy of Sciences of Moldova Chisinau, Republic of MoldovaThe model is proposed for the calculation and research of steady state asymmetric modes and transients in three-phase three legs transformer devices with arbitrary diagram of windings connection, taking into account the electromagnetic coupling of the windings, located on different legs. Using as an example distribution transformer of 10/0.4 kV calculations and analysis were performed of the most characteristic steady asymmetrical modes, that occur during short circuit, phase failure, unbalanced load for the most common windings connections and, in particular, associated with the occurrence of zero sequence magnetic flow. For the considered regimes and schemes vector diagrams were constructed for currents and voltages as well as for the relative values of magnetic flow, which give a clear idea about their particular features.http://journal.ie.asm.md/assets/files/m71_2_247.pdfmodelaasymmetric modes
spellingShingle Bosneaga V.A
Suslov V.M.
MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS
Problems of the Regional Energetics
model
a
asymmetric modes
title MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS
title_full MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS
title_fullStr MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS
title_full_unstemmed MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS
title_short MODELING OF THREE-PHASE THREE LEG TRANSFORMER DEVICES FOR ENGINEERING CALCULATIONS OF ASYMMETRICAL MODES FOR DIFFERENT SCHEMES OF WINDING CONNECTIONS
title_sort modeling of three phase three leg transformer devices for engineering calculations of asymmetrical modes for different schemes of winding connections
topic model
a
asymmetric modes
url http://journal.ie.asm.md/assets/files/m71_2_247.pdf
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AT suslovvm modelingofthreephasethreelegtransformerdevicesforengineeringcalculationsofasymmetricalmodesfordifferentschemesofwindingconnections