Leakage current relays are crucial safety devices that protect both individuals and electrical systems from the dangers associated with electrical leakage. This article will explore the concept, working principle, applications, and importance of leakage current relays in modern electrical systems.

What is a Leakage Current Relay? A leakage current relay is a protective device designed to detect and prevent electrical hazards caused by leakage currents in an electrical system. These relays are used to monitor electrical circuits and automatically disconnect power when the leakage current exceeds a predefined threshold. Leakage currents occur when an electrical current flows through unintended paths, such as through insulation breakdowns or faulty grounding, which can lead to severe consequences, including electrical shock, fire, and equipment damage. Working Principle of Leakage Current Relay