International Research Journal of Education and Technology

The increasing dependence on uninterrupted power supply in industries andhouseholds has highlighted the need for a reliable powerfailure monitoring system. This report presents an IoT-based Three-Phase Power Failure Monitoring System that detects power outages in three-phase electrical systems and provides real-time notifications viaSMS alerts to the user. The proposed system leverages an IoT platform, microcontroller(such as Arduino or ESP8266/ESP32), and a set of voltage sensors to continuously monitor the status of each phase in a three-phase supply. In the event of a power failureor phase imbalance, the system triggers an alert via SMS to the designated mobile

Key Words:  IoT-based, power failure, three-phase electrical systems, SMS alerts, microcontroller, GSM moduleword.