Electrical Transformer Turns Ratio, Voltage & Current Calculator
Calculate secondary output voltage (Vs), primary/secondary currents (Ip, Is), turns transformation ratio (a), and apparent power rating (kVA) for step-up and step-down transformers.
Calculator Inputs
Live Real-TimeSecondary Output Voltage (V_s)
Primary Input Current (I_p)
0.5 A
Apparent Power Rating (kVA)
0.12 kVA
Turns Transformation Ratio (a)
10 :1
Step-Down Transformer: Secondary voltage reduced while increasing available output current.
Voltage Transformation Profile
Detailed Calculation Breakdown
Calculation Methodology
Transformer Equations: Vp / Vs = Np / Ns = Is / Ip = a. Secondary Voltage: Vs = Vp * (Ns / Np). Primary Current: Ip = Is * (Ns / Np). Apparent Power S (kVA) = (Vs * Is) / 1000.
Important Legal & Educational Disclaimer
This electrical power engineering tool computes ideal magnetic transformer transformations.
This calculator is designed for educational and informational purposes only based on public statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimations. Always verify with the relevant official authorities or a certified professional advisor.
Frequently Asked Questions
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