__________________
Management is just like a bunch of Monkey sitting on a tall tree. Some climb to the highest branch and some at the lowest branch. The highest Monkey look down and see a lot of happy faces but the lower Monkey looks up and see nothing but all the....
Firstly, what's a "line feeder's protection project" and an "auto transformer protection project"? This is just far too vague, the voltage/country/standards/project size, etc hasn't even been specified!
Do you want us to send proprietary information on a customer's design to you! Do you know how much legal trouble I would get into (even if I knew exactly what you were after with you vague questions)!
Please explain your question/interest/homework in more detail if you expect an answer! Is this some sort of general interest learning exercise or something more sinister.