Oneline and Threeline Drawings for Transformer Protection Relays - How to Design Protection Schemes

Download our free 28-page power system protection fundamentals text-based course: https://www.romeroengineering.co/prot... Online Courses: https://www.romeroengineering.co/courses In this video we discuss what to look for in oneline and threeline drawings for transformer protection relays. We go over the type of current transformer (CT) connections for transformer protection schemes, particularly for transformer differential protection, as well as the effect of delta and wye power transformer connections and how this affects the overall transformer protection scheme. This video is excerpted from Romero Engineering Company's Power System Protection: Transformer Protection online course. Check out the full course at: https://www.romeroengineering.co/cour... Sign up to our online course subscription at: https://www.romeroengineering.co/offe... Book a one-on-one training session with Ricardo: https://www.romeroengineering.co/offe...