This article describes MATLAB/Simulink realization of open-circuit and short-circuit tests of transformers that are performed to identify equivalent circuit parameters. These simulation models are developed to support and enhance electric machinery education at the undergraduate level. The proposed tests have been successfully integrated into electric machinery courses at Drexel University, Philadelphia, PA and Nigde University, Nigde, Turkey. 2006 Wiley Periodicals, Inc. Comput Appl Eng Educ 14: 142 150, 2006; Published online in Wiley InterScience (www.interscience.wiley.com); DOI 10.1002/cae.20077