PSPICE computer model of a nonlinear three-phase three-legged transformer

Author

Pedra, J. ; Sainz, L. ; Córcoles, F. ; López, R. ; Salichs, M.

Author_Institution

Dept. of Electr. Eng., ETSEIB-UPC, Barcelona, Spain

Volume

19

Issue

1

fYear

2004

Firstpage

200

Lastpage

207

Abstract

This paper proposes a simple, practical PSPICE model of a three-phase, three-legged, saturated transformer with accurate performance. The transformer is modeled with its electric and magnetic equivalent circuits and a simple but reliable characterization of its nonlinear magnetic behavior. Two three-phase transformers of 380/220 V, 7.5 kVA, and 60 kVA, respectively, are studied in order to verify the goodness of the model. The parameters of these transformers are measured in the laboratory, and comparison of the PSPICE model with real measurements has been successful.

Keywords

EMTP; equivalent circuits; power transformers; transformer cores; transformer magnetic circuits; transformer windings; 220 V; 380 V; 60 kVA; 7.5 kVA; PSPICE computer model; electric equivalent circuits; magnetic equivalent circuits; nonlinear magnetic behavior; nonlinear three-phase three-legged transformers; saturation curve; Circuit faults; Circuit testing; Equivalent circuits; Laboratories; Magnetic flux; Magnetic separation; Nonlinear magnetics; Phase transformers; SPICE; Saturation magnetization;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.820224

Filename

1256378