The application includes many electrical diagrams for operating motors: * Single phase Motor start and Three-phase * Single phase motor rotation change with protection and Three-Phase Through this application you can also learn the symbols of many electrical components . The application also includes a calculator for electrical calculations such as: current and voltage intensity, as well as the diameter of the copper wire. The application also contains a table of electrical wire diameter sizes and its endurance capacity. If you are an apprentice, student or electrician, this app will really help you