Abstract: The transformer serves as a stationary apparatus, it transfers the electrical power between circuits, adjusting voltage and current to desired levels while maintaining a consistent frequency. A transformer can operate most efficiently from no load condition to full load capacity, but it will face issues when it is overloaded, which will lead to a serious problem for the health of the transformer. Therefore, it is essential to monitor their health and efficiently distribute the load among multiple transformers. To prevent a transformer from overloading, a backup transformer is employed to power the load when the main transformer is overloaded. The backup transformer is activated automatically by a microcontroller. This setup ensures optimal loading for both transformers. Additionally, both transformers can be turned on to provide the load alternately when the load is normal.

| DOI: 10.17148/IARJSET.2025.125362