Medium Voltage Calculations is an Android-based program developed by Ángel Martínez that provides a comprehensive tool to support the calculation of high voltage electrical installations. The program is free and offers an extensive range of features that include the determination of equipment characteristics, sizing of low and medium voltage insulated cables, calculation criteria for admissible current, voltage drop, short circuit and protection, multiple installation methods, visualization of protection relay trip curve and MV cable admissible current, and much more.

The program also includes a range of In-App purchases that offer additional features such as calculation of short circuits and impedances, selection of voltage and current transformers, capacitor bank of the transformer, dimensioning and checking of protective and service grounding installation, and representation of up to 3 curves with different voltage levels.

Overall, Medium Voltage Calculations is a complete tool for professionals in the electrical engineering field and offers a wide range of features that are essential for high voltage electrical installations. It is compatible with Android 13.0 and can be downloaded for free from the Google Play Store.