Work

Dismantalling of 132/33 KV,20MVA Transformer at 132 KV Substation Banda by dismantling the accessories,opening of jumpers,cutting of earthing,opening of cable connections, draining out transformer oil upto required level,removal of oil pipeline,explosion vent pipe,conservator tank Etc .and proper blanking with proper size gasket & planking plates(blanking plates & nut-bolts shall be provided by department) all other T&P etc shall be arranged by contractor at his own cost.

Dismantling of 132kv L.A by opening of jumpers,nut-bolts & earthing etc. including dismantling of ALP structures after due opening of nut-bolts and earthing etc. and their shifting to store place .(01 job for each set of L.A & ALP structure).

Dragging and shifting of 132/33 KV 20MVA Transformer main tank from transformer plinth alongwith radiator and bushings (approx distance upto 20 mtr,) including turning of transformer if required including all T&P and all other works required to complete job satisfactory.

Additional shifting for every 5 meters

Dragging and shifting of 132/33 KV 40MVA Transformer main tank from storage place to place of loading at 220 KV Subsatation Shahjahanpur alongwith radiator and bushings (approx distance upto 20 mtr,) including turning of transformer if required including all T&P and all other works required to complete job satisfactory.

Additional shifting for every 5 meters

Loading of 40 MVA t/f from trailer jacking the t/f tank for placing the rail under the tank and shifting it to wooden platform removal the rail under that/f tank on wooden sleeper lowering the tank toward ground slowly and removal the wooden sleeper under the tank at 220 KV S/S Shahjahanpur

Safe carriage of 40 MVA t/f main tank with all accessories with t/f oil (oil drum will be provide at 132 kv s/s banda spn ) by private trailer from 220 KV S/S SHAHJAHANPUR TO 132 KV S/S BANDA SPN distance upto 65 km (appro) insurance shall be got by the contractor .

Unloading of 40 MVA t/f from trailer jacking the t/f tank for placing the rail under the tank and shifting it to wooden platform removal the rail under that/f tank on wooden sleeper lowering the tank toward ground slowly and removal the wooden sleeper under the tank at 132 KV S/S BANDA SPN

Shifting of main tank of 40 MVA ,132/33 KV Transformer upto 20 meter distance from unloading place towards plinth including turning of transformer tank,as required alongwith all associated works at 132 KV Substation Shahjahanpur.

Additional shifting for 40 MVA for every 5 meter.

Complete erection of 40 MVA ,132/33 KV Transformer including its radiator,conservator tanks ,HV/LV/Neutral bushing ,turrets,all pipelines,buchholz relay,motor drive mechanism of OLTC, cooling fan etc.

Earthing of main tank ,marshalling box,drive mechanism, transformer neutral etc.of 63 MVA transformer with the help of 50x06 mm size M.S Flats,its jointing with already laid earth mat /delta at 2 place including necessary modification in existing support for earthing of neutral bushing support for its earthing works and then painting of earthing strips as per technical specification.

Making 3 meter long electrodes by cutting 40 mm dia M.S Round bar and making delta earthing of 132 kv & 33 kv neutral bushing after digging pits of size 1x1x1 meter,inserting all 3 Nos, electrodes in pits vertically inside ground making delta by jointing electrode with M.S flats of size 75x10 mm and making riser to connect with HV/LV/Neutral of transformer.

Erection of 132kv L.As including erection of ALP structures and connection of earthing with existing M.S flat as designed place as per technical specification (01 job for each set of L.A & ALP structure).

Jumpering of L.As and HV & LV bushings of 40 MVA transformers throughout 132 & 33 KV L.A with the help of existing /newly prepared ACSR Panther /ACSR Twin moose conductor respectively with associated terminal connector and PG Clamp etc to connect with 132 kv and 33 kv bus bars.

Installation of RTCC Panel of above 40 MVA Transformer in control room including laying additional control cables if required as per site requirement and termination and connection of all existing/newly control cables at RTCC & transformer end as per technical specification.

Laying of following size of cable addition to old laid cable of 40 MVA T/F from control panel in control room to RTCC or marshalling Box as per cable schedule including making necessary holes in gland plate or box wherever required providing and fixing of cable glands of appropriate size, fixing PVC ferrules and Nos. for each core of cable as per drawing including all associated work to complete the work satisfactorily-

2C x2.5 Sqmm

4C x2.5 Sqmm

6C x2.5 Sqmm

Connection of cable & termination of following size of control cable as laid & also termination of cables already dismantled from 40 MVA t/f. and coming from control panel in control room as per cable schedule including making necessary holes in gland plates or box wherever required, providing and fixing of cable glands of appropriate size, fixing of pvc ferrules for each core of cable and its terminations as per drawing including all associated work to complete the work satisfactory.

2C x2.5 Sqmm

4C x2.5 Sqmm

6C x2.5 Sqmm

Proper packing of HV Bushing of dismantled 20 MVA T/F. including proper wrapping with polythene sheet in the wooden crates and stacking them in the store.

Centrifuging of transformer oil taking theIR/BDV & PPM value of T/F oil at an interval of 2 hrs till achieving the desired value(as per specification of T/F manufacturer.)

After centrifusing and achieving the desired value of BDV & PPM (as per specification of T/F manufacturer), testing of T/F oil (Dissloved Gas Analysis, Electric Strtength ,Resistivity & Water content test) is to be done at CPRI lab/ before charging of T/F and after charging of T/F works include sample collection, transportation and submission of reports.

Getting the NOC from Electrical safety office by submission of required fee decided by Electrical safety office

Replacement of Old Gasket from different parts of the T/F 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.

Providing, making and replacement of HV Turret Gasket

Providing, making and replacement of Gasket of Inspection Cover

Safe carriage of 20/50KL Oil Storage tank to 132KV Banda distance approx 70KM

Spray painting of 40 MVA Transformer, TAL make includes outside complete spray painting of main tank, main/OLTC consrvator tanks, radiators, headers, associated pipe lines, support structure, marshalling box, driving mechanism box etc of the transformer by applying one coat of red oxide primer and two coats of admin/dark grey color of first quality synthetic enamel paint of Berger/Luxol/ Asian/Nerolac make at proper interval of each as per technical specification under direction and supervision of concerned AE/JE, with all cost of men, material, T&P etc to complete the job satisfactorily.

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