Development and implementation of an iot-based transformer trainer with real-time monitoring for single / three phase experiments via wi-fi module/ Jhozhefo M. Austria, Mark Angelo S. Banicer, Clarence Ivo C. Lampano, Bobby Jose P. Mongote, Vincent M. Ocon, and Jasper M. Orcales.--

Bachelor's thesis

College Of Engineering.--
Bachelor of science in electrical engineering: Technological University of the Philippines,
2025.

Includes bibliographic references and index.

Transformers are a vital component of the transmission and distribution of electrical energy,
and hence an equally vital component of the study of electrical engineering. Their working
performance and behavior require not only theoretical knowledge but practical exposure
beyond the lecture hall as well. The paper reports the design and testing of an Internet of
Things (IoT)-based transformer trainer system, to be used to improve the outcome of the
transformer experiment. The system is designed to support three-phase and single-phase
connections and offers real-time monitoring through a Wi-Fi module. The system employs
three single-phase 300VA transformers, voltage and current sensors, an Arduino Mega 2560,
and an ESP32 module, all of which work together to take and transfer real-time electrical
readings to a custom mobile application. The application is intuitive, allowing students to
perform interactive experiments while allowing teachers to monitor experiments in real time.
The trainer supports ten fundamental experiments usually performed in transformer studies,
such as the Polarity Test, Turns Ratio Test, Open and Short Circuit Tests, Back-to-Back Test,
and Scott Connection, as well as a few three-phase configurations (∆–∆, ∆–Y, Y–Y, Y–∆).
For safety reasons, the system is equipped with overcurrent protection, an emergency stop,
and fault indicators. Experimental trials show that the trainer provides accurate and reliable
readings, thus proving its functionality in the laboratory or class room environment. By
integrating IoT-based features and an enhanced level of interactive learning, the trainer
bridges the gap between practical implementation and theory. Through this project, not only
is a modern learning device provided, but students are also prepared for industry
requirements by being able to use modern technology effectively and resolve real
engineering problems.