Designing of active phase selector with gsm module

This paper presents the design and implementation of an Active Phase Selector using a GSM module to ensure uninterrupted power supply during phase failure conditions.The system automatically detects the available phase from a three-phase power supply and switches the connected load to the healthiest phase.Additionally, the GSM module provides real-time SMS notifications during phase loss or switching events.The proposed system aims to improve reliability in residential, commercial, and small industrial applications where continuous power is essential.This project finds application in households, offices, hospitals, and industries where uninterrupted single-phase supply is crucial.It minimizes downtime, prevents manual switching errors, and improves overall system reliability.By combining electrical power system concepts with embedded system control and communication technology, the project demonstrates a cost-effective and practical solution for phase selection and monitoring in low-voltage distribution networks.