  This paper explains a unified approach for teaching the electrical model of
power transformers to undergraduate students using magnetic circuits. The
commonly used approach for explaining the electrical model of power
transformers is a hybrid approach in which magnetic circuits are used to
explain the presence of series inductances. However, the presence of shunt
inductance and resistance in the model is explained using alternative
approaches. In contrary, this paper explains how both series and shunt elements
can be described by using magnetic circuits. Moreover, three real-world
examples and Matlab/Simulink results are provided to demonstrate how the
presented explanations can be used to describe the responses of power
transformers in real-world applications.
