Replacement of gasket and attending oil leakage from 100 MVA Transformer

Dismantling safe stacking of Mulsifire System for gasket replacement of 100MVA T/F before replacement gasket nuts–bolts with washer and U clamp.

Draining of transformer oil from 100MVA T/F (BBL make) into oil tanks /drums including shifting of drums filled with old and used transformer oil and staking at proper designated place at 220KV S/s Firozabad.

Dismantling of R.Y.B phase bushing 220KV/ 132KV/33KV HV, LV side and neutral bushing with its turrets, 33KV bushing housing disconnected jumpers and OLTC pipe line with all valves, surge relay, bucholze relay, inspection cover , tap changer, gear box PRV, radiators header, conservator, oil pumps, expansion joints keeping all parts safely at proper place for replacement of gasket with all required labour T& P and cranes of 20-25 T will be arranged by the contractor also opening of nuts, bolts of 100MVA T/F main tank cover bottom fitted rim gasket jacking and lifting the main tank body removing the damage gasket by providing fabrication rim gasket 16mm-20mm thick rubberized cork sheet and its fitting with adhesive at rim and its refitting after replacement of gasket and tightening all nuts with required labour T&P.

Replacement of damage and used gasket and following different part after removing and cleaning of surface fitting with (12-10-8mm as per required)new gasket(rubberized cork sheet make Konika/NUcock/ troboze brand) labour & T&Ps.

HV bushing gaskit

HV turrets bottom gaskit

LV bushing gaskit

LV turrets top and bottom

HV/LV bushing top oil seal

Neutral bushing

Neutral bushing turrets gasket

Tertiary bushing gaskit

Tertiary cover box gaskit

Terminal box gaskit of tertiary & neutral bushing

Inspection window gaskit HV side wall, LV side wall, top cover etc.

80NB butterfly valve of radiator

Header joint rectangular of radiator

50NB gate valve

150NB buterfly valve radiator to main tank

Buttrfly valve of pump set

150NB flange of expension joint

Tringular joint for radiator pipe

Flange of cerculation pump

Air release / drain of nut of radiator

25NB gate valve of radiator pipe line

80NB flange of conservator to main tank pipe line

25NB flange connecting oil pipe for bushing (HV & LV)

100NB drain valve of main tank bottom

OLTC OSR gaskit & its pipe line, OLTC suction valve, relay connector etc., vent for air release.

OLTC mechanism tap changer gaskit

OLTC top and bottom cover include of all packing

Drain out the T/F oil from OLTC chamber with hot oil overhauling with diverter switch flushing with hot T/F oil into chamber

Cleaning and flushing of T/F window in main tank with T/F oil hot centrifuging machine with labour centrifuging mistri T & P

Creating vacuum up to 760mm/hg in main tank and filling the T/F oil into main tank radiators

Erection of 100MVA T/F HV/LV /N bushing, turret pipe line between conservator pipe line, relay PRV, OLTC radiators, oil cooling system, pumps, valve pipe line and tightening of nuts and bolts to complete erection with all required labour and T&Ps.

Centrifuging of T/F oil in main tank radiator /cooling fan taking IR value at period of 4 hrs. with BDV value at a period of 12 hrs. till satisfactory result are obtained with labour and centrifuging technician and machine shall be provided by the contractor.

Jumpering of HV/LV bushing end and connecting with turrets of all RYB phase.

Erection of mulsifire pipe line of different size cutting of thread welding of pipe line with proper completion of all works including of painting all pipes.

Shifting of 50KL oil tank from 220 KV S/S Sikandrarao to 220KV S/S, Firozabad Approx distance up to 125 Km. including loading and unloading on trailor

Painting of 100 MVA BBL make T/F tank with accessories.

SATKAR TRADERS

Technocrat Electrical