Electric Traction | List four miscellaneous equipment at control post with function of each. Draw the labeled diagram of traction substation.

 Miscellaneous Equipment at Control Post:

1) Lightning Arrestor: Provides protection against lightning over-voltages / surges.

2) Auxiliary transformer: Provides 230 V, 50 Hz, supply to operate battery charger, remote control equipment, signal and lighting at control post. 

3) PT: Measure H.V. and indicate its value at each sub sector of remote control center. 

4) Battery: For operation of remote control equipment and interrupter.

5) Battery charging equipment: For charging of batteries at the control post.

Diagram of Traction Substation: