dear ashish:

power system:

by D. P. Kothari for fault analysics and on so on , and also refer S.N. Singh some portion regarding T/L lines and some theory related portion, also refer NPTEL IITR B.Das lectures pdf for fault part, This is one of the best resource.

hope this may help you

power system consist of alternators that are driven by prime movers,transformers,bus bars, circuit breakers, power stations ,and other auxiliary devices that are used to tranfer power from source to load in most reliable ecomical and efficient manner.

there are several manners through which you can learn these extra points in your CV.

try looking for courses on https://www.edx.org/ if you want certificates for the same although the courses here might be a bit expensive.

you can even watch videos in youtube and hence gain knowledge in the field.

all the best