ROUTINE, BREAKDOWN MAINTENANCE OF HT/ LT TRANSFORMERS, VENTILATION SYSTEM AND OVERHAULING OF LT TRANSFORMER OF 3X210 MW, ATPS, ANPARA SONEBHADRA AS PER SCOPE OF WORK

Amount

Routine maintenance work of 13 Nos. HT and 38 Nos. LT Transformers of 3x210 MW 'A'TPS, Anpara, as per scope of work

Upkeep & Routine maintenance of ventilation system of 3x210MW ‘A’TPS, Anpara (Sonebhadra), as per scope of work. (Monthly Basis)

Arresting oil leakage from radiators and associated pipe lines of the transformers.

Replacement of HT/LT, Neutral Bushing/ gaskets of HT/LT transformers (Excluding GT):-LT Transformers (Up to 1.6 MVA)

Replacement of HT/LT, Neutral Bushing/ gaskets of HT/LT transformers (Excluding GT):-HT/LT side of HT Transformers (16 MVA to 40 MVA).

Replacement of HT/LT side turret gasket of LT Transformer for arresting oil leakage.

Checking of test plugs and CT terminals of HT transformers (All the three phases & neutral).

Arresting oil leakage from spindle bush of tap changer of GT.

Arresting oil leakage from top/bottom inspection cover of the transformer or back inspection cover of bushing by even tightening of nuts & bolts and applying M-seal etc. thereafter.

Disconnection & Re-connection of HT transformer from HV side by opening jumpers & removing carbon deposits and cleaning by CTC.

Replacement of Expansion Bellows of UAT

Cleaning of LT side links of G.T. as per Scope of Work.

Overhauling of Tap changer as per Scope of work.

Overhauling of cooling fan of HT transformer

Replacement of Cooling Fan of HT Transformers.

Rewinding of damaged motor stators of Cooling Fan.

Overhauling of circulating pumps.

Rewinding of damaged motor stators of circulating pumps.

Centrifuging of transformer oil of HT/ LT transformer/ Storage tank.

Overhauling of marshalling boxes for transformers:-From 1.0 MVA upto 16 MVA.

Overhauling of marshalling boxes for transformers:-From 40 MVA upto 250 MVA.

Thorough cleaning of transformers after completion of work during overhauling/ breakdown:-From 1.0 MVA upto 16 MVA.

Thorough cleaning of transformers after completion of work during overhauling/ breakdown:-From 40 MVA upto 250 MVA.

Erection & commissioning of LT Transformer (1.0 MVA /1.6MVA, 6.6KV/0.4KV) in place of damaged one.

De-watering and cleaning of oil pit in transformer yard & CW pump house.

Cleaning/Cutting of grass of Transformer Yard including plinth area (Total area of transformer yard = 12561.38 M²).

Replacement of phase side Seal Off bushing of IP Bus duct at GT LV side.

Dismantling and Assembly of LV & Neutral Bushing, LV Turret etc. (proper replacement of gaskets /‘O’ rings).

Replacement of Pressure Relief Valve of HT Transformers.

Replacement of Expansion Bellow of GT

Replacement of Cooling Fan with Cooler of GT-1

Opening and reclosing of LV turret after work of HT transformer

Dismantling and Reinstalation of HT Bushing(Single Phase).

Complete overhauling of 1.5MVA or 1.6MVA, 6.9/0.4 KV LT Transformers of 3x210 MW, ‘A’TPS, Anpara, Sonebhadra, as per scope of work.

Complete overhauling of 1.0 MVA, 6.9/0.4 KV LT Transformers of 3x210 MW, ‘A’TPS, Anpara, Sonebhadra, as per scope of work.

Replacement of Starters of Ventilation fans of different capacities of 3x210 MW 'A'TPS, Anpara, as per scope of work.

Replacement of Bearings in Motors of Ventilation Fans of different capacities of 3x210 MW 'A'TPS, Anpara, as per scope of work.

Assembly and Commissioning of Ventilation Fans of different capacities of 3x210 MW 'A'TPS, Anpara, as per scope of work.

Dismantling/Assembly of Motors of Ventilation Fans located at Ceiling/ Roof Top of Turbine Hall, Clarified Pump House, Fire Pump House, Ash Slurry Pump House, Mechanical Workshop, Switchgear, Battery Room, VDDC Room, Basement , Switchyard and DM Plant of 3x210 MW 'A'TPS, Anpara

Servicing and Repairing of Dust Extraction fan of chimney " of 3x210 MW, ‘A’TPS, Anpara, (Sonebhadra), as per scope of work.

Alignment of Dust Extraction fan of chimeny " of 3 x 210 MW, ATPS, Anpara, Sonebhadra as per scope of work.

Replacement of bearings DE/NDE of Dust Extraction fan of chimeny " of 3 x 210 MW, ATPS, Anpara, as per scope of work

Deen Dayal

M/S MADHU CONSTRUCTION