Details: disconnecting lt cable/ busbar and earthing connetions of lt servo voltage stabilizer of capacity 400 kva, 3 phase from floor with the help of crane to carry out overhaulling of servo voltage stabilizer comprising of the following:- (i) draining out oil from chamber.(ii) opening top cover, disconnecting winding connectio from bushing and taking out carefully core assembly complete with winding.(iii) checking compactness of core & tighening the same where required.(iv) chemical washing of winding to remove dirt, dust & carbon particles.(v) cleaning of oil tank to remove oil sludge followed by painting of inner surface to tank with zinc chromate base paint.(vi) refixing of core & winding assembly and making connection with ht/lt bushing.(vii) replacement of worn out gaskets & nut/ bolts.(viii) refilling of oil duly filtered/ dehydrated/ fresh oil( to be measured & paid separately under respective items).(note: overhauling of servo voltage stabilizer should be done on existing installatio
Sector: Defense