tender for m & l for disconnecting all incoming and outgoing cables of transformers of following capacities at various locations installed on two pole/four pole structures/on platforms at station, opening the top cover, carrying out following activities :- (a) draining out all the transformer oil to clean barrel for reuse. (b) dismantling of all attachment viz breather assy, conservator, oil temperature gauge, ht/lt bushing etc and keeping aside for re-use and re-assembling the serviceable dismantled parts/new spare by providing new insulation materials, gasket, nuts & bolts etc. (c) inspection of transformer core and winding, drying out transformer core and winding in vacuum chamber till specified ir values are obtained. (d) cleaning of complete transformer tank, oil fins, removing of sludge and making the inside surface of tank dry by blowing of hot air as directed. note : dehydration of collected transformer oil shall be measured and paid seperately , transformer of capacity 100/160 kva , transformer of capacity for 200 kva , transformer of capacity for 250kva , transformer of capacity for 400kva , transformer of capacity for 500kva , m & l for removing the of transformers of following capacities at various locations installed on two pole/four pole structures/on platforms at station and loading it in the vehicle carefully using crane and transporting it to the workshop for hv/lv re-winding, transport the transformer back to the site , install it complete all as specified and directed :- notes : (a) m & l for cost of re-winding shall be measured and paid for separately , transformer of capacity upto 200 kva , transformer of capacity for 400kva/500 kva , m & l for re-winding hv/lv coils of transformers with super enameled copper wire as per the existing gauge and as per laid down standards incl re-insulating with suitable insulating material, complete all as directed , supply only ht bushing poreclain with copper/brass stud, nuts, bolts, washers, stem,bushing ,gasket, oil seal suitable for following capacity transformer complete all as specified and directed. , transformer of capacity 100/160 kva , transformer of capacity for 200/250 kva , transformer of capacity for 400kva , transformer of capacity for 500kva , supply only lt bushing poreclain with copper stud, nuts, bolts, washers, gasket, oil seal set of four (for 3 phase and one for neutral) suitable for following capacity transformer complete all as specified and directed. , transformer of capacity 100/160 kva , transformer of capacity 200/250 kva , transformer of capacity 400kva , transformer of capacity 500kva , supply only ms bolts, nuts and washers as per existing size and length all as directed. , supply only oil level gauge with replacement of worn out / unserviceable toughened glass,gasket etc for transformers of capacity upto 500 kva. , dismantling, cleaning & refixing oil level gauge (indicator) with replacement of gasket etc for for transformers of capacity upto 500 kva. complete all as specified and as directed. , supply only tap changer switch with handle for transformer of following capacities complete all as specified and directed:- , transformer of capacity upto 250 kva rating , transformer of capacity exceeding 250 kva and upto 500 kva. , transformer of capacity exceeding 250 kva and upto 500 kva.