Relay coordination refers to setting protective devices so that the relay closest to the fault operates first, while upstream relays act as backups. Relay coordination is one of the most critical aspects of electrical power system protection. The IEC standard for relay coordination provides clear guidelines and methodologies to ensure that protective relays work in harmony to isolate only the faulty section of the system while keeping the rest. Power system protection is designed to detect and isolate faults, preventing damage to equipment and ensuring that healthy sections of the network continue to operate. The Goal: We use 7 core principles to protect people, save. Protective Relays - Technical Seminar Nov 2016 - Copyright: IEEE 2 Abstract: Protective relays and devices have been developed over 100 years ago to provide “lastline”of defense for the electrical systems. This energy can be provided by battery sets (mostly) or by the monitored circuit itself. Ideally, the system minimizes fault energy by limiting fault duration in high-risk environments, yet maximizes power quality and availability in urban areas.
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