A free app for Android, by faadooengineers.com.
This app is an offline application, so you can access it anywhere, anytime. It provides you with all the essential information regarding the power systems. You can also get help from it in your exams and interviews. It has a vast collection of diagrams, equations, and other graphical representations. It also includes a separate section for students. You can contribute your work here and also get the latest updates on the topic.
The app is very easy to use. You can search for any topic you want to learn. You will also get help in your exams and interviews. It is a very good reference for all those who are studying the topic. It is the best app for those who are studying the power systems.