Power System Protection: Relays and Switchgear Fundamentals

Every modern electrical grid relies on robust protection systems to prevent catastrophic failures and ensure continuous power delivery. This text-based course guides you through the foundational concepts of switchgear and protective relays, equipping you with the analytical skills to address power system faults. By reading through clear explanations and working through practical numerical exercises, you will develop a solid understanding of how to select, configure, and analyze critical protection devices. What you'll learn: 1. Understand the fundamental concepts of power system faults and the role of switchgear. 2. Analyze the operation and application of overcurrent, directional, and differential relays. 3. Solve essential numerical problems related to relay settings, plug setting multipliers, and time dial settings. 4. Explore modern digital and numerical relaying technologies used in smart grids today. 5. Evaluate protection schemes for transformers, generators, and transmission lines. The course begins with key terminology, basic principles of circuit interruption, and foundational relay definitions before moving on to practical calculations and modern system designs. It is designed for engineering students, junior technicians, and beginners looking to build a strong foundation in electrical power protection with no prior advanced experience required. Start building your power systems expertise today.