Transformers and Power Supplies
Transformer Turns Ratio Calculator
Transformer Turns Ratio reports secondary voltage from one operating case.
Enter values for secondary voltage
Use one consistent electrical operating case for all fields.
How Transformer Turns Ratio works
The calculation uses Vs = Vp × Ns/Np. Transformer Turns Ratio uses Primary voltage, Turns ratio Ns/Np to report Secondary voltage. Apparent power can be checked in Transformer VA Rating Calculator.
With the loaded values, secondary voltage evaluates to 23.92 V. Preserve the baseline before changing a value.
Inputs for Transformer Turns Ratio
Primary voltage and Turns ratio Ns/Np belong to Transformer Turns Ratio. Keep source units with primary voltage.
The opening values are placeholders for testing the arithmetic. Use Transformer Voltage Regulation Calculator.
- Primary voltage
- Example entry: 230 V.
- Turns ratio Ns/Np
- Example entry: 0.104.
Reading the Transformer Turns Ratio result
This output represents Transformer Turns Ratio.
Finish the selection with standard sizes, operating limits, and transient review. Use Current Transformer Burden Calculator to a separate cT burden calculation.
Measurement and units
Check component ratings, isolation requirements, temperature, waveform, and manufacturer limits. Check prefixes on primary voltage. Continue to Buck Converter Calculator for ideal buck output.
Use the same unit basis and observation location in alternate cases.
Limits of this calculation
Loaded secondary voltage also depends on regulation.
This equation represents one relationship rather than a full circuit simulation. Unentered effects remain outside Transformer Turns Ratio.