This paper presents the development of an experimental bench for performing time-domain tests on synchronous machines at standstill. The test bench allows the collection of experimental data which can then be used in the parameter estimation of mathematical models of synchronous motors and generators. The system development is based on the LabVIEW programming language. It effortlessly allows the calibration of voltage and current sensors, the d-q magnetic axis positioning of the synchronous generator, and the spectral analysis from the collected data. In addition, the testing environment includes non-sophisticated instrumentation elements and a power amplifier. This experimental bench has a friendly user interface which guides the user throughout a defined methodology to allow the achievement of the different time domain tests on synchronous machines. A 7kVA, 220V, 60Hz synchronous generator was used to show the functionality and usefulness of the test bench in research and teaching electrical machine theory.
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