At its core, relay circuit protection is a method used to safeguard electrical circuits from faults, such as overloads, short circuits, and excessive voltage. Relays are electromechanical or electronic devices that act as automatic switches, designed to detect abnormal conditions within a circuit. Once a fault is identified, the relay triggers an action—usually disconnecting the faulty circuit or device from the power source, thereby preventing further damage.

    Working Principles of Relay Circuit Protection

    Relays work by monitoring specific parameters of an electrical circuit, such as current, voltage, or temperature. When these parameters deviate from their normal operating range, the relay responds by opening or closing a switch, effectively disconnecting the faulty part of the system.