Electrical Machines | Lec 9 | Transformer Construction (Part 2) | GATE Electrical Engineering
Understanding Transformer Construction
Introduction to Transformer Components
- The discussion begins with a reference to the previous video, indicating a continuation of the topic related to transformer construction.
Eddy Current Loss and Insulation
- Eddy current loss is addressed, emphasizing that insulation is applied between laminations to prevent eddy currents from affecting adjacent layers.
- Leakage flux is mentioned, particularly in shell-type transformers, highlighting its impact on efficiency.
Core Cross Section Design
- The ideal core cross-section should be rectangular, incorporating laminations with insulation in between each layer.
- A detailed description of the layering process: first the transformer core, followed by LV winding, insulation, and then HV winding.
Preferred Shapes for Large Transformers
- For larger transformers, a circular cross-section is preferred over a rectangular one due to better performance characteristics.