Title :
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
Abstract :
This panel discussion summarizes experimental work that has been 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; transformer cores; transformer testing; transformer windings; transformers; admittance matrices; core-type distribution transformers; mutual admittances; phase domain; sequence domain; symmetrical components; transformer models; transformer testing; Admittance; Automatic testing; Circuit testing; Equations; Impedance; Leg; Phase measurement; Symmetric matrices; Transformer cores; Voltage;
Conference_Titel :
Power Engineering Society General Meeting, 2003, IEEE
Print_ISBN :
0-7803-7989-6
DOI :
10.1109/PES.2003.1267147
