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## Delta ⇌ Wye Transformations

##### OBJECTIVES

In this chapter you will learn about:

• Appreciate the concept behind delta and Y connections
• How to convert from Δ to Y
• How to convert from Y to Δ
• How to solve simple problem using these conversions
• Simplify complicated networks by using these conversions

Delta ⇌ Wye Transformations

##### 25.1  INTRODUCTION

Three impedances connected nose-to-tail, as shown in Figure 25.1, are said to be delta (Δ) or mesh connected, because they form a mesh.

Three impedances connected together to a common point, as shown in Figure 25.2, are said to be star (or Y) connected.

If their nodes (1, 2 and 3)—to which the two ...

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