Transformer Calculator
Calculate transformer parameters including turns ratio, voltage, current, and power relationships
About this calculator
This transformer calculator helps engineers, technicians, and students determine critical transformer parameters including turns ratio, primary and secondary voltages, currents, and power relationships. It's essential for designing electrical systems, selecting appropriate transformers, and understanding how voltage transformation affects current and power distribution. The calculator simplifies complex transformer equations, making it invaluable for electrical design work, troubleshooting, and educational purposes in power systems and electronics applications.
How to use
Enter your known transformer parameters such as primary voltage, secondary voltage, or turns ratio. Input the primary or secondary current if known. The calculator will automatically compute the missing values including turns ratio, voltage relationships, current transformations, and power calculations based on ideal transformer principles.
Frequently asked questions
What is turns ratio in a transformer?
Turns ratio is the relationship between primary and secondary windings, calculated as Np/Ns, which directly determines the voltage transformation ratio.
How does transformer turns ratio affect current?
Current is inversely proportional to turns ratio. When voltage steps up, current steps down by the same ratio, maintaining power balance.
Can this calculator handle step-up and step-down transformers?
Yes, the calculator works for both step-up transformers (turns ratio >1) and step-down transformers (turns ratio <1) automatically.