Transformer Secondary Voltage Calculator

Transformer Secondary Voltage Equation:

\[ V_s = V_p \times \text{Turns Ratio} \]

Secondary Voltage (V_s):

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1. What is the Transformer Secondary Voltage Equation?

The transformer secondary voltage equation calculates the output voltage of a transformer based on the primary voltage and the turns ratio. This fundamental relationship demonstrates how transformers can step up or step down AC voltages.

2. How Does the Calculator Work?

The calculator uses the transformer equation:

\[ V_s = V_p \times \text{Turns Ratio} \]

Where:

\( V_s \) — Secondary voltage (V)
\( V_p \) — Primary voltage (V)
Turns Ratio — Ratio of secondary to primary turns (dimensionless)

Explanation: The secondary voltage is directly proportional to the primary voltage multiplied by the turns ratio. A turns ratio greater than 1 indicates a step-up transformer, while a ratio less than 1 indicates a step-down transformer.

3. Importance of Secondary Voltage Calculation

Details: Accurate secondary voltage calculation is essential for proper transformer selection, electrical system design, voltage regulation, and ensuring compatibility with connected electrical equipment.

4. Using the Calculator

Tips: Enter primary voltage in volts and turns ratio (dimensionless). Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is the turns ratio in a transformer?
A: The turns ratio is the ratio of the number of turns in the secondary winding to the number of turns in the primary winding (N_s/N_p).

Q2: How does the turns ratio affect voltage transformation?
A: The voltage transformation is directly proportional to the turns ratio. A higher turns ratio produces higher secondary voltage, while a lower ratio produces lower secondary voltage.

Q3: Can this equation be used for both step-up and step-down transformers?
A: Yes, the same equation applies to both step-up and step-down transformers. The turns ratio determines whether the voltage increases or decreases.

Q4: What are the limitations of this ideal transformer equation?
A: This ideal equation assumes no losses, perfect coupling, and negligible magnetizing current. Real transformers have losses due to resistance, leakage flux, and core losses.

Q5: How does load affect the secondary voltage?
A: Under load, the actual secondary voltage may be slightly lower than calculated due to voltage drop caused by transformer impedance and losses.