Details: major overhauling of each pole mechanism assemblies of pneumatic type 245 kv sf-6 cb cgl make (year 1995). the job includes overhauling of complete mechanism assembly including opening of control valve assembly holding latch anti-pumping pin, opening & cleaning of pneumatic system, cylinder shock absorber etc. cleaning & greasing of all these parts, opening of reservour, checking of electrical connection and tightening them. rectification of air leakage problem through nrv safety valve replacement of consumable spares as roller d valve sheet, o-ring p-80, o-ring p-18,o-ring p-07 etc. and other damaged rings if necessary. overhauling of nrv and air filter of switch cubical along with replacement of all defective gaskets. rectification of gas leakage by replacement of o-ring and brazing of gas pipe assembly of the mechanism satisfactorily operation of breaker from local & remote of the following 220kv feeders/transformer bays at 400 kv sub-station unnao with all cost of required o-rings,
Sector: Transmission