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Transformer Turns Ratio Formula:
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The transformer turns ratio is the ratio of the number of turns in the primary winding to the number of turns in the secondary winding. It determines the voltage transformation between primary and secondary circuits according to the formula: Turns Ratio = N1/N2 = V1/V2.
The calculator uses the transformer turns ratio formula:
Where:
Explanation: The turns ratio determines how the transformer will change voltage from primary to secondary. A ratio greater than 1 indicates a step-down transformer, while a ratio less than 1 indicates a step-up transformer.
Details: Calculating the turns ratio is essential for transformer design, voltage regulation, impedance matching, and ensuring proper operation in electrical power systems and electronic circuits.
Tips: Enter either the number of turns (N1 and N2) OR the voltages (V1 and V2). All values must be positive numbers. The calculator will compute the turns ratio based on the provided inputs.
Q1: What is the relationship between turns ratio and voltage?
A: The turns ratio directly equals the voltage ratio (N1/N2 = V1/V2) for an ideal transformer with no losses.
Q2: How does turns ratio affect current?
A: For an ideal transformer, the current ratio is inversely proportional to the turns ratio (I1/I2 = N2/N1).
Q3: What is a typical turns ratio range?
A: Turns ratios can range from very small values (step-up transformers) to very large values (step-down transformers), depending on the application.
Q4: How accurate is this calculation?
A: This calculation assumes an ideal transformer. Real transformers have losses that may affect the actual voltage ratio.
Q5: Can I calculate impedance transformation with turns ratio?
A: Yes, the impedance transformation ratio is equal to the square of the turns ratio (Z1/Z2 = (N1/N2)²).