Understanding Zigzag Connection of Transformers — Lesson 8

This lesson covers the concept of zigzag connection in three-phase transformers. It explains that these transformers can be three individual units and any connections can be implemented. The lesson further elaborates on the primary phase having two coils, and the secondary phase having. The lesson concludes with the discussion of the C phase and the assumption of dots or numbers.

Video Highlights

00:20 -Explanation of the conditions for implementing zigzag connection
03:27 - Discussion on the FS voltage and its relation to the secondary side
08:56 -Discussion on the BH curve of a core material and its implications
14:47 - Explanation of the nature of flux when the current is sinusoidal
29:27 - Discussion on the requirements to create a 50 Hertz flux in the core

Key Takeaways

• Zigzag connection in transformers can be implemented in three individual units.
• Each phase in a zigzag connection must have two secondary coils.
• The primary phase will have two coils, A1A2 and A3A4.
• The secondary phase will have B1B2 and B3B4.
• The C phase is the final phase discussed in the lesson.