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Understanding Wye/Delta and Delta/Wye Conversions in Electrical Circuits

This lecture explores the concepts of Wye/Delta and Delta/Wye conversions, focusing on their implications in circuit analysis. We will discuss the effects of these transformations, highlighting how D-Y conversion eliminates a loop but introduces a node, while Y-D conversion eliminates a node and adds a loop. The lecture includes a practical example of Y-D conversion, detailing the process of finding R_ab through various methods. We will also examine further simplifications and calculations in new circuits following these conversions.

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Understanding Wye/Delta and Delta/Wye Conversions in Electrical Circuits

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  1. EE 1205 Lecture 05 - Wye/Delta & Delta/Wye Conversions

  2. Wye/Delta Conversion (1/2) Wye Delta

  3. Wye/Delta Conversion (2/2)

  4. Delta/Wye Conversion

  5. Effects of D-Y & Y-D Conversions • D-Y Conversion eliminates a loop but adds a node. • Y-D Conversion eliminates a node but adds a loop.

  6. Y-D Conversion Example Find Rab Several Methods: We choose to eliminate node c, then simplify.

  7. Y-D Conversion Calculations

  8. New Circuit

  9. Further Simplifications

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