Current Transformer (CT) - Part 2

Master the fundamentals of Current Transformers (CTs) in electrical protection and metering systems! In this comprehensive tutorial, we break down how CTs step down high primary currents to safe, manageable levels for protection relays, meters, and monitoring equipment. Whether you are an electrical engineer, protection technician, or student, this video covers everything you need to know about CT operation, construction, and applications. What You Will Learn in This Video:Fundamentals: How Current Transformers work and why they are critical in power systems. CT Ratio & Polarity: Understanding primary vs. secondary current ratings (5A / 1A) and dot convention. Core Types & Construction: Measuring CTs vs. Protection CTs (Core saturation characteristics). Accuracy Classes: Demystifying 5P20, 10P20, 0.2, and 0.5 accuracy classes.