Measurements and model validation on three-phase core-type distribution transformers

Author

Carneiro, S. ; Martins, H.J.A.

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Rio de Janeiro, Brazil

Volume

2

fYear

2003

fDate

13-17 July 2003

Abstract

This panel discussion summarizes experimental work that is conducted to establish the validity of models for 3-phase distribution transformers. The discussion reviews a classical method to obtain the admittance matrices both in the phase domain and in the sequence domain and the assumptions adopted in the derivations. Measurements on actual distribution transformers are then reported to show the validity of the assumptions and consequently of the model. The differences in the mutual admittances between the various windings are analyzed and their relevance to accurately represent core type transformers is stressed.

Keywords

electric admittance; matrix algebra; power transformer testing; transformer cores; transformer windings; admittance matrices; core type transformers; distribution transformers measurements; model validation; phase domain; sequence domain; symmetrical components; three-phase core-type distribution transformers; windings; Admittance; Automatic testing; Differential equations; Impedance; Leg; Phase measurement; Phase transformers; Symmetric matrices; Transformer cores; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2003, IEEE

Print_ISBN

0-7803-7989-6

Type

conf

DOI

10.1109/PES.2003.1270405

Filename

1270405