Voltage detector क्या होता हे? और कैसे उसे use करते हे? 

Very Very good video

Very Helpful Bro.. ..thank you

Every Electrical person needs to see this

Sir ji 765kv S/S me Line Reactor or Bus Reactor ka full details working Per vdo plz plz bana sir ji Working principle

Sir minimum to Maximum kitna Voltage tak Check Karskte Hai.