Transformer overload protector

The protection of transformers from overcurrent is pivotal to the overall reliability and stability of a power distribution system. Serious accidents, expensive repairs, or other awful events can arise as a result of such overloading. An Arduino-based monitoring system for overload protection of transformers is presented within this project. Using the ACS712 current sensor, the system automatically checks the current in real time and evaluates it against reference values for overloads. In overload conditions, a relay mechanism interrupts the transformer to prevent damage. Furthermore, the project also includes an LCD screen which indicates the status of the transformer, relay, and circuitry as useful information to the operators. For testing, empirical evidence established that the system was able to sense overload conditions and take preventive action without delay. This inexpensive and expandable design improves the security and operational performance of modern power distribution systems and will be useful in the field of electrical engineering.