Increasing Capacity of (63 40) MVA Transformer at 132 KV Substation Jattari Aligarh under ETD I Aligarh

Amount

Dismanteling of all jumpers of old 40 MVA,132/33 kV T/F (Accurate make) from HV & LV side bushings.

Complete dismantiing the accessories of 40 MVA, 132/33 KV (Accurate make) Transformer after, removal of earthing and opening of cables of cable connection, draining out the transformer oil upto required level in 209 litres capacity oil drums tanker, removal of all radiators, conservator tank, oil pipe lines all bushings, turrets, fan motors, marshalling box, RTCC panel etc. with proper gasket alongwith nuts and bolts to complete the jobs satisfactorilly including proper stacking, Blanking plates, nuts and bolts and gaskets shall be provided by the department. All other T&P etc. shall be arranged by the contractor at his own cost.

Shifting of main tank of 40 MVA 132/33 KV (Accurate Make) transformer main tank from plinth up to 20 meters distance including turning of tank, if required, including all T&P and all other works required to complete the job satisfactory as per tech specn. enclosed

Additional shifting of 40 MVA T/F approx. 5 mtrs or part thereof including turning, if any

Dismentlling of old 3 no. 36 KV, 800/1, CTs including opening of all cable connection, jumpers, & earthing etc. and shifting to store. And then erection of new 03 no. 36 kV, 1250/1A ratio CTs including shifting jumpering , earthing and cabling etc.

Dismentlling of old 1 no. 36 KV,1250A, Bus Isolator including opening of earthing etc. and shifting to store. And then erection of new 1 no. 36 kV/2000A Bus Isolator including shifting and earthing etc.

Shifting of main tank of new 63 MVA, 132/33 KV tansformer at 132 kV s/s Jattari from unloading point up to plinth, approximate 20 mtrs distance including turning of tank, if required including all T&P and all other works required to complete the job satisfactory as per tech specn. enclosed

Additional shifting of 63 MVA T/F approx. 5 mtrs including turning, if any

Draining out approx. 4 kL transformer oil from 209 ltr. Drums to oil tank

Complete erection of new 63 MVA, 132/33 KV make transformer by erection of rediators, conservator tanks, all bushing their turrets connecting oil pipe lines, cooling fans, motor drive mechanism of tap changer, RTCC pannel, oil pumps and associated oil pipe lines etc. to complete the job satisfactory including first filling of oil and topping up of transformer oil (Not circulation) in tank radiator, oil pipe lines, conservator tank etc. and attending the oil leakage, if any, and all other associated works for satisfactorilly completion of work. No Department crane/ T&P shall be provided by the department.

Centrifuging of complete Transformer oil by connecting centrifuging machine, to be arrange by contractor alongwith operator and taking the B.D.V. values of the oil periodically till the required value is achieved as per direction of supervising engineer as per technical specn. enclosed

Opening of old twin Moose conductor jumpers from 33 kV Main bus to Isolator, twin panther from Isolator to CB, CT, LA and then new jumpering of new 63 MVA transformer at LV side with twin Moose/Zebra up to 33 kV main bus and HV side bushing to jack bus with Panther conductor.

Packing of 03 Nos. HV Bushings of dismanteled old 40 MVA, 132/33 kV Transformer into crates of 63 MVA T/F HV bushings.

Earthing of 63 MVA, 132/33 KV transformer neutral body, Marshalling Box, Drive mechanismetc. with MS flat to be provided by Deptt.. In place of dismantled equipments with 75x10 mm. MS Flat and connection the same with main earthmat at two places as required including painting of MS Strips with Green enamel paint above ground surface.

Dismantling of old 3no. 120 KV LAs after opening of earthing and jumpereing alongwith its structure.

Erection of old 3no. 120 KV LAs along with its structure and earthings.

Laying of 2x2.5mm/4x2.5mm/6x2.5mm size of Unarmoured control cable in the cable trench from control relay panel to transformer's marshalling boxe as per cable schedule, its saddling at every 75mm. Distance with M.S saddle of size 25x3mm. Size including carriage of cable drums from store to laying site and shifting back to store and all other associated work to complete the job satisfactorilly as per techanical specification.

Termination of 2x2.5mm/4x2.5mm/6x2.5mm size of unarmoured cable as laid above as per cable schedule including making necessary holes in glands plates or box wherever required, supply and fixing of cable glands of appropriate size, supply and prividing ferrules and nos. for for each core of cable and its termination with crimping type lugs of Dowell/ tension make and all other associated work to complete the job satisfactorilly as per techanical specification :

Delta Earthing consisting of fabrication of 3 nos. 3 mtr. Long electrodes its piercing inside ground & connecting all 3 electrodes with 75x10/50x6 mmMS flat and connecting the same with main earthmat at 2 places (For both T/Fs, HV & LV side both) as required excluding the cost of MS Round and flat (will bw provided by deptt. free of cost)

Versha and Brothers

Reliance Enterprises