A Realistic Virtual Lab for Investigation of Single-Phase Transformers

In this study is presented the development of a virtual transformer in the Engine for Virtual Electrical Engineering Equipment (EVEEE). Initially, the behavior of the transformer is modelled with an equivalent circuit, which is implemented with a SPICE circuit in the database of the engine. On graphical level the transformer is implemented with three PNG images. Next, a virtual lab is created that contains a transformer, an AC power source, a resistor decade and two multimeters. The functionality of the transformer is tested in three regimes: open circuit, short circuit and different loaded modes. The obtained results showed that the developed transformer is working correctly and the created lab could be used in the educational process for emergency situations such as the COVID-19 crisis.