1. What is the Transformer Voltage Equation?

The transformer voltage equation relates the input and output voltages of a transformer to its turns ratio. This fundamental principle allows us to step up or step down voltages in electrical systems.

2. How Does the Calculator Work?

The calculator uses the transformer voltage equation:

Where:

• \( V_{out} \) — Output voltage (volts)
• \( V_{in} \) — Input voltage (volts)
• \( N_{secondary} \) — Number of turns in secondary coil
• \( N_{primary} \) — Number of turns in primary coil

Explanation: The output voltage is directly proportional to the turns ratio between the secondary and primary windings.

3. Importance of Voltage Calculation

Details: Accurate voltage transformation is crucial for power distribution, equipment compatibility, and electrical safety in both industrial and residential applications.

4. Using the Calculator

Tips: Enter input voltage in volts, number of turns for both primary and secondary coils. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is 208V to 480V conversion important?
A: This conversion is common in industrial settings where 480V is needed for heavy machinery while the supply is 208V.

Q2: What's the typical turns ratio for 208V to 480V?
A: The ratio is approximately 1:2.31 (480/208), meaning the secondary has about 2.31 times more turns than the primary.

Q3: Does this account for transformer losses?
A: No, this calculates ideal transformation. Real transformers have small losses (typically 2-5%) due to resistance and other factors.

Q4: Can I use this for step-down transformers?
A: Yes, the same equation works for both step-up and step-down transformations.

Q5: What about current in the transformer?
A: Current transforms inversely with voltage (I_secondary = I_primary × N_primary/N_secondary).