Minor Irrigation Department Tender

MI04 - Work of repair and rewinding of LV side upto 100 KVA power transformer as specified below: a. Drain out the contaminated transit oil completely from the reactor; flush the windings of the transformer with jet force of good BDV value transit oil. b. Removing the burnt out windings from all the three phases of the transformer provide new windings of LV side in all three phases. c. Clean the terminal connection with carbon tetra chloride solution. d. Fill the new transit oil (departmental supply) replace the bolts, nuts, washers and provide gasket etc., wherever necessary provide silica gel breather. e. Fix the transformer in the bet and charge the transformer and observe Performance “ON LOAD” andensure for trueness of the transformer performance. etc.., complete with all lead and lifts including loading and unloading and as per specifiction with the directions of Engineer-in-charge of work. ( Ref :- As per relevant IS)

MI05 - Work of rewinding of HV side upto 100KVA power transformer as specified below: a. Switch off Power supply of transformer Isolator feeder and discharge with discharge rod. b. Disconnect the input and output cables form 100 Kva transformer. c. Drain old transformer oil from transformers, and flush the winding jet force with good BDV valve transformer oil. d. Manually lead up to crane rEach and load to truck to shift factory. e. After rewinding the burnt out HV windings of transformer and replace the gaskets carbonized bolts and Nuts check the necessary tests. f. Fill the new transformer oil (BWSSB Supply) &replace the silica gel breather. g. Re install transformer after received form factory. h. Switch ON power supply and check the transformer,No load and on load. etc.., complete with all lead and lifts including loading and unloading and as per specifiction with the directions of Engineer-in-charge of work. ( Ref :- As per relevant IS)

MI06 - Work of servicing, leak arresting and oil filtration upto 400 KVA power transformers as specified below: a. Removing cable connection of transformer after isolating the supply dismantling the cable connection b. Replacing the existing leakage L.V side H.T Busing Gasket, oil seal, bots and nuts etc. of the power transformer. c. Replacing the existing non-functioned damaged Dehydrating Breather by a new breather with new silica gel for the above transformer d. Arresting oil leak from exclusive vent, neutral bushing of valves, flanges, is drying arresting the leakage for L.V and HV side of power transformer and refilling of the transformer oil including cost of labour and necessary repaired materials. e. Repaint the Transformer using light grey epoxy paint of 2 coated as original. f. Filtering of oil in the transformer at the transformer center by hot process using stream line filter such that the dielectric strength of oil in the transformer conforms to ISI specification. g. Painting of entire structure of transformer yard including fencing using silver paint etc.., complete with all lead and lifts including loading and unloading and as per specifiction with the directions of Engineer-in-charge of work. ( Ref :- As per relevant IS)

MI07 - Removing the burnt out copper flats form all the 3 phases of neutral side motor. Providing. copper flats copper flats to neutral side connection Re connect the motor end cable & cable connection using bolts nuts and washers etc as original etc.., complete with all lead and lifts including loading and unloading and as per specifiction with the directions of Engineer-in-charge of work. ( Ref :- As per relevant IS)

MI08 - Consumables Engine oil ( SAH-10) for DWTpumps @ Jackwell