Secondary Voltage Calculator


About Secondary Voltage Calculator (Formula)

A Secondary Voltage Calculator is a tool used in electrical engineering to compute the secondary voltage of a transformer, which is the voltage output generated in the secondary winding based on the primary voltage and turns ratio. This calculation is vital for understanding the behavior of transformers and designing electrical systems.

Formula for Secondary Voltage Calculation:

The formula for calculating secondary voltage involves using the turns ratio between the primary and secondary windings of the transformer. The formula is:

Secondary Voltage = Primary Voltage × (Number of Secondary Turns / Number of Primary Turns)


  • Secondary Voltage: The voltage output in the secondary winding of the transformer.
  • Primary Voltage: The voltage input in the primary winding of the transformer.
  • Number of Secondary Turns: The number of turns or coils in the secondary winding.
  • Number of Primary Turns: The number of turns or coils in the primary winding.

The turns ratio represents the ratio of the number of turns in the secondary winding to the number of turns in the primary winding.


  1. Transformer Analysis: Engineers use the Secondary Voltage Calculator to analyze and design transformer systems, ensuring desired voltage transformations.
  2. Voltage Regulation: Calculating secondary voltage is essential in understanding the regulation and stability of electrical systems.
  3. Electrical Distribution: The calculator aids in determining the voltage levels in electrical distribution networks.
  4. Power Transmission: Secondary voltage calculations contribute to the efficient transmission of electrical power over long distances.
  5. Energy Efficiency: Designers use secondary voltage calculations to optimize transformer efficiency and minimize energy losses.

In summary, a Secondary Voltage Calculator involves calculations that help engineers and professionals determine the voltage output in the secondary winding of transformers, contributing to effective transformer design, electrical system analysis, and energy efficiency considerations.

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