Transformer Calculator is a simple and free iPhone app that allows users to easily calculate the primary and secondary full-load currents of a transformer. Additionally, it determines the turns ratio and type of transformer.

With this app, users can select the number of phases, either 1Φ or 3Φ, and enter the transformer rating while selecting the appropriate VA/kVA value. Furthermore, users can input the primary and secondary transformer voltages.

Once the necessary information is provided, the app calculates the primary full-load currents, secondary full-load currents, and the turns ratio (N1/N2 = V1/V2 = I2/I1). This makes it a useful tool for engineers, electricians, and anyone working with transformers.

Transformer Calculator provides a straightforward and efficient way to quickly obtain important transformer parameters, making it a valuable utility for those in the utilities and tools category.