Short-circuit analysis of an isolated generator and comparative study of IEC, ANSI and dynamic simulation

C. G. Kaloudas, P. N. Papadopoulos, T. A. Papadopoulos, A. G. Marinopoulos, G. K. Papagiannis

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

The accurate evaluation of short-circuit currents is significant for the estimation of the maximum thermal and mechanical stress in electrical equipment and for the protection coordination of power systems. The IEC-60909 standard is widely used for the calculation of maximum and minimum short-circuit currents. The calculation according to the ANSI standard is also a reliable tool for the proper selection of circuit breakers. Symmetrical and asymmetrical fault currents in a typical topology of an isolated synchronous generator feeding local loads, fault current results are calculated using IEC-60909 and ANSI standards and are compared to the corresponding obtained by the dynamic simulation using ATP/EMTP. The influence of different network parameters as well as of some simplifying assumptions on generator modeling in both standards is systematically investigated and differences between the static and the dynamic analysis are examined.
Original languageEnglish
Number of pages7
DOIs
Publication statusPublished - 10 Nov 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

  • short-circuit calculation
  • IEC 60909
  • ANSI
  • single line to ground fault
  • three-phase fault
  • ATP/EMTP modeling
  • circuit breakers
  • power system protection
  • short-circuit currents
  • synchronous generators
  • thermal stresses

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  • Cite this

    Kaloudas, C. G., Papadopoulos, P. N., Papadopoulos, T. A., Marinopoulos, A. G., & Papagiannis, G. K. (2010). Short-circuit analysis of an isolated generator and comparative study of IEC, ANSI and dynamic simulation. Paper presented at 7th Mediterranean Conference and Exhibition on Power Generation, Transmission, Distribution and Energy Conversion, MedPower 2010, Agia Napa, Cyprus. https://doi.org/10.1049/cp.2010.0922