Three Phases Fault Detection System

Abstract: Detecting faults in transmission lines is something we cannot afford to ignore if we want power systems to remain reliable and safe. In real-world conditions, transmission lines routinely face threats from lightning, insulation breakdown, equipment failure, and environmental disturbances. These events can trigger single line-to-ground faults, line-to-line faults, double line-to-ground faults, or full three-phase faults. Getting a grip on these faults quickly—before they cascade into larger failures—is what separates a robust power system from one that causes extended outages and equipment damage.

Keywords: fault detection, transmission line protection, ACS712, Arduino Uno, NodeMCU, GPS module, power system reliability.