CENTRIFUGING OF COMPLETE TRANSFORMER OIL AND REPLACE THE DAMAGED GASKETS OF 220/132KV 200MVA T/F-II

Amount

Following works are to be Carried out for the Work of Centrifuging of Complete Transformer Oil and Replacement of damaged Gasket of 200MVA T/F-II (M/s. AVAL make, Sl. No. - M140/8, Year of Manufacturing - 2016) alongwith other associated works with all cost of Men, Materials, Misc Consumables, Crane / Hydra, Normal & Special T&Ps, Rails etc. required for Satisfactory Completion of work, as per Technical Specification & direction of the J.E(M) / A.E(M) as per details below :

Loading, Shifting and Unloading of 1 No. Oil Tank of Capacity 20KL with the help of Hydra / Crane from Storage place to near Working site and put back the same from Working site to safe Storage place after Completion of Job as per instruction of Supervising Engineer.

25% (10KL or as per requirement) drain out of the Transformer Oil from 200MVA T/F tank into 1 No. 20KL Oil Tank including opening of valve and filling in Oil Tank.

Dismantling & Erection of 200MVA T/F Tertiary Bushing, Neutral Bushing, inspection cover, Radiator, PRV, OLTC Plate etc.for replacement of Gasket.

Replacement of Old Gasket from different parts of the Transformers as per details below. The scope of works involves removal of Gaskets, Cleaning of surface, Fabrication of Gaskets of appropriate size of thickness 12 / 10 / 8 / 6 mm of Konica / Nu-Cork make and fixing of Gaskets at proper place with adhesive along with other associated works. Gaskets are of Type C, Very Good Oil Resistant and as per IS 4253 and Contractor must have to submit Test Report of Gaskets before replacement.

Providing and making of Radiator Valve Gasket.

Providing and making of Gasket of inspection cover.

Providing and making of C.T. inspection cover N

Providing and making of Gasket of PRV

Providing and making of LV Bushing Gasket.

Providing and making of N Bushing Gasket.

Providing and making of Gasket of OLTC tank.

Providing and making of nylon washer of radiator, Bushing, Air releasing plugs.

Centrifuging of T/F Oil in Oil Storage Tanks, un-interrupted till the desired BDV & PPM (Less than 5 PPM) Value of the Oil is achieved and then Filling & Topping up of the Centrifuged T/F Oil in Transformer as per Standard Procedure to Maintain required Oil Level in the Transformer including Commissioning of Air Cell if required. Centrifuging & Circulation of T/F Oil in Transformer, un-interrupted till the desired BDV & PPM Values of the Oil & IR Values of Bushings are achieved including Hourly Recording all the Parameters such as Temp., Vacuum, Insulation Resistance etc. Centrifuging Machine, its Operator and all associated T&Ps shall be arranged by the Contractor at his own cost.

Filling of the drained Transformer oil into main tank and radiators from oil tanks after centrifusing in main tank completed.

Perfect Power Transformer Associates (BID ID -4810412)

Gupta Elect and Engg Works (BID ID -4810024)