THREE-PHASE DIGITAL STARTER FAULT DETECTION AND PROTECTION SYSTEM (KEY IJP************021)

• Mahale Ratan

Abstract

The system employs a Current Transformer (CT) to monitor the current in each phase (R, Y, B) and a relay to detect abnormal current conditions. When the CT senses an unusual current, indicating a potential fault, it signals the relay, which then triggers a circuit breaker (CB) to disconnect the affected circuit. Additionally, an indicator bulb is activated to provide a visual alert for operators, signaling the presence of a fault.This design is suitable for industrial and commercial applications where continuous and reliable power supply is essential. By quickly identifying and responding to faults, the system reduces downtime, protects equipment, and enhances safety. The project demonstrates a cost-effective and efficient approach to fault detection and protection in three-phase systems, contributing to the broader goal of improving electrical safety and reliability