Transformer Voltage Calculation

Transformer Voltage Equation:

\[ V_s = V_p \times \frac{N_s}{N_p} \]

Secondary Voltage (V_s):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the Transformer Voltage Equation?

The transformer voltage equation calculates the secondary voltage of a transformer based on the primary voltage and the turns ratio between primary and secondary windings. It demonstrates the fundamental principle of electromagnetic induction in transformers.

2. How Does the Calculator Work?

The calculator uses the transformer voltage equation:

\[ V_s = V_p \times \frac{N_s}{N_p} \]

Where:

\( V_s \) — Secondary voltage (V)
\( V_p \) — Primary voltage (V)
\( N_s \) — Number of turns in secondary winding
\( N_p \) — Number of turns in primary winding

Explanation: The equation shows that the voltage ratio between primary and secondary windings is directly proportional to the turns ratio of the transformer.

3. Importance of Transformer Voltage Calculation

Details: Accurate voltage calculation is crucial for transformer design, electrical system planning, and ensuring proper voltage transformation for various applications.

4. Using the Calculator

Tips: Enter primary voltage in volts, number of secondary turns, and number of primary turns. All values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal transformer assumption?
A: The equation assumes an ideal transformer with no losses, perfect coupling, and no leakage flux.

Q2: How does this relate to current transformation?
A: For an ideal transformer, the current transformation is inversely proportional to the voltage transformation: \( I_s = I_p \times \frac{N_p}{N_s} \).

Q3: What are typical voltage ranges for transformers?
A: Transformers can handle voltages from a few volts to hundreds of kilovolts, depending on their design and application.

Q4: How do real transformers differ from ideal ones?
A: Real transformers have losses due to resistance, hysteresis, eddy currents, and leakage flux, which affect the actual voltage output.

Q5: Can this equation be used for step-up and step-down transformers?
A: Yes, the equation works for both step-up (N_s > N_p) and step-down (N_s < N_p) transformers.