Current Transformer (CT) Explained – Nameplate, Polarity & Testing | Part 2

In this video (Part 2), we continue our journey in understanding Current Transformers (CT). we dive deep into the essential concept of Current Transformer (CT) Polarity, covering everything from basic theory to advanced software solutions. We explain the physical differences between Subtractive and Additive polarity and how they impact protection systems. We will cover: - CT Nameplate details and how to read each value - Understanding Subtractive vs. Additive polarity with clear diagrams. - Polarity (P1, P2, S1, S2) and why it is critical - Common CT tests before commissioning - A step-by-step guide on using modern protection relay settings (like "Towards Bus" or "Towards Line") to virtually shift phase by 180° and fix wiring errors without physical intervention. This video is perfect for electrical engineers, technicians, and students working in power systems, protection, and substation fields. 🔹 Topics Covered: ✔ CT Ratio explained ✔ Burden and Accuracy Class ✔ Polarity marking and connections ✔ Polarity Test step-by-step ✔Towards Bus & Towards Line ✔ Basic CT testing procedures 📌 Watch Part 1 here: (https://youtu.be/vkVFm4bF-pQ?si=5imP2nwBa9r99tHo) 👍 If you found this video helpful, don’t forget to like, share, and subscribe for more electrical engineering content! #currenttransformer #ct #electricalengineering #powersystems #substation #protection #polarity #electrical