'ARTIS-IHA - School of Arts and Humanities of the University of Lisbon, Portugal'
Abstract
This paper presents the development and implementation
of a digital simulation model of a three-phase,
three-leg, power transformer. The proposed model, implemented
in MATLAB environment, is based on the physical
concept of representing windings as mutually coupled coils,
and it is intended to study its adequacy to incorporate, at a
later stage, the influences of the occurrence of windings inter-
turn short-circuits. Both simulation and laboratory tests
results, obtained so far, for a three-phase, 6 kVA transformer,
demonstrate the adequacy of the model under normal operating
conditions