Very Short Term E - Tender No. 06 /ETD-II/(B)/2022 -23 (Work)

Amount

Following work is to be carried out for improving IR / Tan Delta values of winding of 100 MVA CGL make T/F at 220 KV S/S Amriya with all cost of men, material, Misc. Consumables, dry air plant & Centrifuging M/c with Operator, Normal and Special T&P, Transport Vehicle etc. required for satisfactory Completion of work, with all due care of safety & Pracautions as per Technical specification and direction of the Supervising Engineer, as per Details below :

To and Fro carriage of oil storage Tank from Designated S/S in Bareilly (Distance Aprox. 70 KM) to 220 KV S/S Amariya including shifting and loading / unloading of oil stroge Tank at Designanted Sub Stations.

Complete evacuation of 100 MVA Transformer Main Tank and filling of dry air of dew point 50°C or better in vacuum and then pressure upto 0.25 kg/Cm2 and again evacuation of the Transformer tank after required time interval (Approx. 12 to 24 Hrs) using centrifuging machine. The work shall include connecting pipes of machine as required, measuring dew point value of Dry Air during every cycle(1 Job is defined as complete cycle of evacuation, filling and maintaining of dry air in the T/F main tank), till the required value is achieved under supervision of Supervising Engineer

Centrifuging of the Transformer Oil Filled in Oil Tank, Un-Interrupted till the desired BDV Value of the Oil is Achieved. Filling of Centrifuged Transformer Oil into Main Tank and Radiators of the above 100MVA Transformer from the Oil Tanker, then Centrifuging & Transformer Oil in Transformer with the Help of Centrifuging Machine, Un-Interrupted till the Desired BDV Values of the Transformer Oil and IR Values are Achieved including Recording of all the Parameters such as Temperature, Vacuum, Insulation Resistance, BDV etc. every 2 Hours.

MEERA GYAN ENTERPRISES

LASHANI ENTERPRISES