A relay circuit protection system is designed to detect faults such as overcurrent, overvoltage, undervoltage, and short circuits, among others. Relays are sensors that monitor the circuit’s performance, and when an abnormal condition is detected, the relay sends a signal to isolate the problem, preventing further damage to the system. By quickly responding to faults, relays help in maintaining the system's stability and prevent costly downtime.

    In electrical distribution systems, relay protection ensures that faults are isolated as quickly as possible, minimizing the effect of faults on other parts of the circuit. This becomes particularly important in critical applications such as power generation, manufacturing plants, and large commercial buildings, where uninterrupted power supply is essential.