About: Elimination of three-phase transformer inrush current through core forced magnetization and simultaneous closing     Goto   Sponge   NotDistinct   Permalink

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  • The inrush current occurs during transformer energization due to flux saturation in the core. Controlled switching connects transformer to power grid in proper phase angle derived from core remanent fluxes. The DC forced magnetization prior to transformer energization is one of simultaneous closing strategy methods. Active intervention to the transformer remanent flux was realized as a DC power supply with current splitter and automated disconnection circuit. Inrush currents were measured in dependency on switch on angle. Resulting current maps determine the range of switch on angles in which the current does not exceed the limits. This angle range restricts the choice of synchronous switch closing time scatter. This paper shows the results of a research on possible closing time scatter dependency both on forced pre-magnetizing current and on transformer working flux for star, grounded star and delta winding connections.
  • The inrush current occurs during transformer energization due to flux saturation in the core. Controlled switching connects transformer to power grid in proper phase angle derived from core remanent fluxes. The DC forced magnetization prior to transformer energization is one of simultaneous closing strategy methods. Active intervention to the transformer remanent flux was realized as a DC power supply with current splitter and automated disconnection circuit. Inrush currents were measured in dependency on switch on angle. Resulting current maps determine the range of switch on angles in which the current does not exceed the limits. This angle range restricts the choice of synchronous switch closing time scatter. This paper shows the results of a research on possible closing time scatter dependency both on forced pre-magnetizing current and on transformer working flux for star, grounded star and delta winding connections. (en)
Title
  • Elimination of three-phase transformer inrush current through core forced magnetization and simultaneous closing
  • Elimination of three-phase transformer inrush current through core forced magnetization and simultaneous closing (en)
skos:prefLabel
  • Elimination of three-phase transformer inrush current through core forced magnetization and simultaneous closing
  • Elimination of three-phase transformer inrush current through core forced magnetization and simultaneous closing (en)
skos:notation
  • RIV/46747885:24220/10:#0001720!RIV11-GA0-24220___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP102/08/P453)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 256923
http://linked.open...ai/riv/idVysledku
  • RIV/46747885:24220/10:#0001720
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Inrush current; Transformer; Controlled switching (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [772D76214032]
http://linked.open...v/mistoKonaniAkce
  • Pilsen
http://linked.open...i/riv/mistoVydani
  • Pilsen
http://linked.open...i/riv/nazevZdroje
  • Applied Electronics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Novák, Miroslav
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
issn
  • 1803-7232
number of pages
http://purl.org/ne...btex#hasPublisher
  • Západočeská univerzita v Plzni
https://schema.org/isbn
  • 978-80-7043-865-7
http://localhost/t...ganizacniJednotka
  • 24220
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