INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS

The model of power three-phase three legs phase-shifting transformer with connection in delta and two additional windings is realized. Calculations and research of steady state asymmetric modes particularities of given transformer with such windings connection were fulfilled, taking into account the...

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Main Authors: Bosneaga V.A., Suslov V.M.
Format: Article
Language:English
Published: Academy of Sciences of Moldova 2014-08-01
Series:Problems of the Regional Energetics
Subjects:
Online Access:http://journal.ie.asm.md/assets/files/02_02_25_2014.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 of power three-phase three legs phase-shifting transformer with connection in delta and two additional windings is realized. Calculations and research of steady state asymmetric modes particularities of given transformer with such windings connection were fulfilled, taking into account the electromagnetic coupling of the windings, located on different legs. Calculations and analysis were made using as an example the distribution transformer with 10 kV high voltages, including the most characteristic steady state asymmetric modes that occur during different short circuits and asymmetric no load modes, associated with the occurrence of zero sequence magnetic flux. For the considered modes vector diagrams for currents and voltages, as well as for the relative values of magnetic fluxes in legs were constructed, which in ensemble give clear idea about their particularities.
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spelling doaj.art-b892a26a7993478fa188024546e5a33d2022-12-22T03:31:03ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702014-08-012014-22(25)17INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGSBosneaga V.A.0Suslov V.M.1Institute of Power Engineering of the Academy of Sciences of MoldovaInstitute of Power Engineering of the Academy of Sciences of MoldovaThe model of power three-phase three legs phase-shifting transformer with connection in delta and two additional windings is realized. Calculations and research of steady state asymmetric modes particularities of given transformer with such windings connection were fulfilled, taking into account the electromagnetic coupling of the windings, located on different legs. Calculations and analysis were made using as an example the distribution transformer with 10 kV high voltages, including the most characteristic steady state asymmetric modes that occur during different short circuits and asymmetric no load modes, associated with the occurrence of zero sequence magnetic flux. For the considered modes vector diagrams for currents and voltages, as well as for the relative values of magnetic fluxes in legs were constructed, which in ensemble give clear idea about their particularities.http://journal.ie.asm.md/assets/files/02_02_25_2014.pdfPower three-phase three legs phase-shifting transformer model
spellingShingle Bosneaga V.A.
Suslov V.M.
INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS
Problems of the Regional Energetics
Power three-phase three legs phase-shifting transformer model
title INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS
title_full INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS
title_fullStr INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS
title_full_unstemmed INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS
title_short INVESTIGATION OF ASYMETRIC MODES OF THREE-PHASE THREE LEGS PHASE SHIFTING TRANSFORMER WITH CONNECTION IN DELTA AND TWO ADDITIONAL WINDINGS
title_sort investigation of asymetric modes of three phase three legs phase shifting transformer with connection in delta and two additional windings
topic Power three-phase three legs phase-shifting transformer model
url http://journal.ie.asm.md/assets/files/02_02_25_2014.pdf
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AT suslovvm investigationofasymetricmodesofthreephasethreelegsphaseshiftingtransformerwithconnectionindeltaandtwoadditionalwindings