Back to the Bridge

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# Back to the Bridge - PowerPoint PPT Presentation

Back to the Bridge. Which resistors are in series? Which resistors are in parallel?. Delta ( Δ ) Connection. Resistors R 1 , R 2 , and R m (or R 3 , R m , and R x ) are in a Delta ( Δ ), or pi ( π ) connection. Wye (Y) Connection.

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Presentation Transcript
Back to the Bridge
• Which resistors are in series?
• Which resistors are in parallel?

ECE 201 Circuit Theory I

Delta (Δ) Connection
• Resistors R1, R2, and Rm (or R3, Rm, and Rx) are in a Delta (Δ), or pi (π) connection.

ECE 201 Circuit Theory I

Wye (Y) Connection
• Resistors R1, Rm, and R3 (or R2, Rm, and Rx) are in a wye (Y), or tee (T) connection.

ECE 201 Circuit Theory I

Δ – Y Conversion

ECE 201 Circuit Theory I

Δ – Y Conversion (continued)
• The resistance between the terminal pairs must be the same for both circuits

ECE 201 Circuit Theory I

Δ – Y Conversion (continued)
• After some algebraic manipulation

ECE 201 Circuit Theory I

Y – Δ Conversion

ECE 201 Circuit Theory I

Y – Δ Conversion (continued)
• The resistance between the terminal pairs must be the same for both circuits

ECE 201 Circuit Theory I

Y – Δ Conversion (continued)
• After some algebraic manipulation

ECE 201 Circuit Theory I