Calculation of transformer internal faults in short circuit analysis

Author

Ghanavati, G. ; Kouhsari, S.M. ; Koochaki, A. ; Mahmoodan, M.

Author_Institution

Dept. of Electr. Eng., Amirkabir Univ. of Technol., Tehran

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

7

Abstract

This paper presents a novel method of modeling internal faults in a power transformer. The method leads to a model which is compatible with commercial phasor-based software packages. Consequently; it enables calculation of fault currents in any branch of the network due to a winding fault of a power transformer. These currents can be used for evaluation of protective relayspsila performance and can lead to better setting of protective functions.

Keywords

fault diagnosis; matrix algebra; power transformers; short-circuit currents; commercial phasor-based software packages; power transformer; protective relay; short circuit analysis; transformer internal faults; winding fault; Circuit analysis; Circuit faults; Fault currents; IEC standards; Phase transformers; Power system modeling; Power system protection; Power transformers; Short circuit currents; Software packages; Transformers; internal fault; modeling; short circuit currents; transformer windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4596059

Filename

4596059