substation kya hota h substation kitne types k hote h substation me kya kya hota h transformer kya hota h transformer me kitne parts hote h electricty kya hoti h electric energy kya hoti h electrical technology electrical gyan all types engineering knowledge all types technology all information electrical related all problems solbe generating substation kya hota h transmitted substation kya hota h distributed substation kya hota current kya hota voltage kya hota power kya hoti h energy kya hoti h control and relay pannel ka wiring termination kese karte h all type wiring termination work
25 сен 2021