22.6 Equivalent Circuit (Iron- core Transformer) Ep 10/11 www moo Rp www Rp2 N N 000 ell 000 Xs www R₂ www-l E, R₁ CL

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How to calculate total Z and R in the circuit?

 

 

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**22.6 Equivalent Circuit (Iron-core Transformer)**

This diagram represents the equivalent circuit model of an iron-core transformer. 

**Components:**

- **Eₚ**: Primary voltage source.
- **Rₚ**: Primary winding resistance.
- **Xₚ**: Primary winding reactance.
- **Nₚ / Nₛ**: Turns ratio where \( a = \frac{N_p}{N_s} \).
- **Rₚ₂**: Additional primary resistance, possibly accounting for core losses.
- **Xₛ**: Secondary winding reactance.
- **Rₛ**: Secondary winding resistance.
- **Eₛ**: Secondary induced voltage.
- **Rₗ**: Load resistance connected to the secondary coil.
- **Cₗ**: Load capacitor for filtering purposes.

**Description:**

- The circuit is divided into primary (left side) and secondary (right side) sections, separated by a transformer core represented as two inductors with the turns ratio indicated.
- On the primary side, the voltage source Eₚ encounters the primary side resistance (Rₚ) and reactance (Xₚ).
- The secondary side includes its own resistance (Rₛ), reactance (Xₛ), and is connected to a load comprising Rₗ and Cₗ.
- The transformer is designed to transfer electrical energy efficiently from the primary to the secondary side, stepping up or stepping down the voltage according to the turns ratio.

This model helps in analyzing transformer behavior, including voltage regulation, efficiency, and losses.
Transcribed Image Text:**22.6 Equivalent Circuit (Iron-core Transformer)** This diagram represents the equivalent circuit model of an iron-core transformer. **Components:** - **Eₚ**: Primary voltage source. - **Rₚ**: Primary winding resistance. - **Xₚ**: Primary winding reactance. - **Nₚ / Nₛ**: Turns ratio where \( a = \frac{N_p}{N_s} \). - **Rₚ₂**: Additional primary resistance, possibly accounting for core losses. - **Xₛ**: Secondary winding reactance. - **Rₛ**: Secondary winding resistance. - **Eₛ**: Secondary induced voltage. - **Rₗ**: Load resistance connected to the secondary coil. - **Cₗ**: Load capacitor for filtering purposes. **Description:** - The circuit is divided into primary (left side) and secondary (right side) sections, separated by a transformer core represented as two inductors with the turns ratio indicated. - On the primary side, the voltage source Eₚ encounters the primary side resistance (Rₚ) and reactance (Xₚ). - The secondary side includes its own resistance (Rₛ), reactance (Xₛ), and is connected to a load comprising Rₗ and Cₗ. - The transformer is designed to transfer electrical energy efficiently from the primary to the secondary side, stepping up or stepping down the voltage according to the turns ratio. This model helps in analyzing transformer behavior, including voltage regulation, efficiency, and losses.
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