ttps - es - mrt i – replacement of the existing outdatedelectromechanical type relays by latest version numerical protection relays in 415v lt switchgears such as uss, sss, n / e, bmcc & espin unit–i, ii & iii.; 1 arrangement for relay fixing works, ie., panel cutting and drilling for suitable cutout in the existing panel. 2 arrangement for fixing dummy plates in the dismantled relays cut out 3 ferrules, lugs, sleeves, etc., and other necessary consumables 4 opening of all earth pit in transformer yard, cleaning the earth electrode & pit, checking the joints and earthing rod if necessary, closing the cover after completion of work.