What intertrip relay?

An intertrip relay is a protective device used in electrical systems to detect faults and initiate a protective action, such as tripping circuit breakers, to prevent equipment damage or safety hazards. It functions by monitoring the electrical parameters of a system and sending a signal to disconnect a section of the circuit when abnormal conditions are detected. Intertrip relays are commonly employed in substations and industrial installations to coordinate protection between interconnected equipment. Their operation enhances the reliability and safety of power distribution systems.