Development of Iot-Based Smart Circuit Breaker

This research project focuses on the development of an intelligent circuit breaker system designed to measure and monitor electrical current through the use of an ESP8266 microcontroller together with a current transformer. This equipment is to be used to enable the identification of both underload and overload situations in a simplified yet efficient fashion, particularly on alternating current power systems. Whenever current measurements exceed defined safe limits, the system automatically engages the relay to disconnect supply and protect the related devices. At the same time, real-time values such as current values as well as relay working condition are relayed to a web program for monitoring as well as documentation purposes. The core part of the system is the ESP8266 microcontroller, which receives analog inputs from the current transformer, processes the inputs, and sends the data through Wi-Fi to the web-based application dashboard. It has been kept very simple intentionally to ease the installation and versatility for the domestic or small scale renewable energy systems. Testing has been carried out through AC power, together with three 10W bulbs representing various load conditions (underload, normal, and overload). It was observed that the system clearly detected and responded to each condition of the load while properly taking data remotely. Overall, the project provides an economically reasonable, portable, and dependable technique of smart energy monitoring and circuit protection, together with the possibility to be upgraded to include additional parameters as well as predictive features.