Magnetizing inrush current effects on large transformer arrangements

Panagiotis N. Papadopoulos, Christos G. Kaloudas, Theofilos A. Papadopoulos, Georgios D. Metaxas, Grigoris K. Papagiannis

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)

Abstract

In this paper the effect of the magnetizing inrush currents, occurring during the energization of transformers, is examined. A case study is presented for an industrial arrangement consisting of five large transformers and three generators. The transformers are modeled using the Hybrid/XFMR model implemented in the well known transients program ATP-EMTP. This model can give an accurate representation of the core of the transformers. Various scenarios are simulated in order to investigate the occurrence of magnetizing inrush currents and the parameters affecting the peak value and the shape of the waveforms. Finally, various methods to reduce inrush currents are presented and evaluated.

Original languageEnglish
Title of host publication7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion, MedPower 2010
Place of PublicationLondon
Volume2010
Edition572 CP
DOIs
Publication statusPublished - 2010
Event7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion, MedPower 2010 - Agia Napa, Cyprus
Duration: 7 Nov 201010 Nov 2010

Conference

Conference7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion, MedPower 2010
CountryCyprus
CityAgia Napa
Period7/11/1010/11/10

Keywords

  • atp/emtp
  • inrush currents
  • power transformers
  • transient analysis

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