Construction of 132 33KV Transformer bay along with erection and testing of 20MVA Transformer and other associate works at 132KV Substation Akarabad under E400KVD Aligarh

Commissioning and Erection of 132/33 KV, 20 MVA Transformer

Shifting of main tank of 20 MVA, 132/33 KV Transformer from plinth upto 20 meters distance including turning of tank, if required, including all T&P and all other work required to complte the job satisfactory.

Complete erection of 20 MVA, 132/33 KV Transformer by erection of radiations, conservator tanks, all bushings, their turrets, connecting all pipe lines, cooling fans, motor drive machanzm of tap changer, RTCC panels, oil pumps and associated oil pipe lines, etc. to complete the job satisfactorily including first filling of oil and topping up of transformer oil in tank radiators, oil pipe lines, conservator tank etc. and attending the oil leakage, if any and all other associated works for satisfactorily completion of work. No deparmental crane/T&P shall be provided.

Centrifuging of transformer oil in main tank of the 20 transformer, taking the IR/BDV value of the transformer oil at an interval of 4 hours as per norms till the desired value of BDV/PPM are obtained.

Repair of three phase cooling fan along with its connection

Overhauling of marshalling box and providing damaged contractor, TB's etc to make cooling system in auto mode.

Construction of 132 KV & 33 KV Transformer bay and other associated work.

Erection of main and auxiliary structure consisting of columns, beams, peaks, masts etc. and auxiliary structure required for installation of Isolator, CTs P.Ts, L.As and all other equipments. The job consists of shifting of all material i.e. structure parts, nuts, bolts, washers etc. from store to site of erection, erection of structure as per relevant drawing and practices using flat and spring washer with each bolt. Matching of holes, cutting, matching of members if required shall also be done by the contractor without any extra cost to complete the work satisfactorily. All material to be erected shall be supplied by UPPCL free of cost but all men, material and T&P required for satisfactorily completion of work shall be arranged by the contractor at his own cost.

Erection of following equipments as per Instruction manual of various equipments and technical specifications including shifting of material/equipment from store to erection site including all other assocaited work to complete the job satisfactory.

145 KV Circuit breaker

145 KV Instrument transformer (CTs, PTs)

145 KV Bus Isolator without PI

145 KV Tandem Isolator without PI

145 KV Post Insulator

120 KV Lightning Arrester

132 KV Transformer C&R Panel

36 KV Vaccum Circuit breaker

36 KV Current Transformer

36 KV Bus Isolator

30 KV Lightning Arrester

Junction box for 132 KV CVT/C.T.

Junction box for 33 KV C.T./P.T.

Apex Panel

Cutting Straightening, bending, laying 700mm./500mm below in side ground and above ground of following size of M.S. Flat for earthing of main and auxiliary structure, equipment structure, T/F body and its neutral etc. including welding with main earthmat and with object to be earthed, excavation of tranches, its back filling, painting and all other associated work as required to complete the work satisfactorily, excluding the cost of M.S. Flat.

To provide Delta earthing for Transformer's neutral including fabrication of 3 No. 3.00 Mt. long electrodes, their placing 500 mm below ground level, interconnections using 75x10 mm MS Flat.

Earthing of Transformers' neutrals with 75x10mm MS Flat run on ladder including cost of fabrication, connecting with delta with angle and flat and painting.

To provide grid for earthing of 120 KV Las including fabrication of 6 no. 3.00 Mt. long electrodes, their placing 500 mm below ground level, interconnections using 75x10 mm MS Flat.

To provide grid for earthing of 30 KV Las including fabrication of 4 Nos. 3.00 Mt. long electrodes, their placing 500 mm below ground level, interconnections using 50x6mm MS Flat.

Stringing of bus bar of 132 KV & 33 KV with different type of conductor and different length of span mentioned below including fitting of tension clamp, hoisting of insulator, cutting of conductor and also shifting of all material from store site to switchyard site and all other associated work to complete the work satisfactorily as per technical specification.

1xP - 132 KV Jack Bus (span length - 34.5 mtr.)

Interconnection of bay equipments and bus bar including cutting, bending of conductor and jumpering, clamping along with all other associated work to complete the job satisfactorily as per drawing and technical specification.

132 KV Side Transformer bay - 1xPanther (1M+1T)

33 KV Side Transformer - 2xMoose (1M)

Interconnection of section isolator.

Providing and fixing of MS wire mesh of size 7mtr x 3.2 mtrs wire mesh size 1x1" of 14SWG between 40 MVA transformer and 33 KV lightning arrestor. Work includes fabrication of frame of MS angle of size 65x65x6mm, supported by vertical MS angle of size 50x50x6mm at two place at equidistance. Similarly providing MS flat of size 50x6mm at two places at equidistance. Frames must be fabricated with 02 No. legs of length 2.4 mtrs of size 65x65x6mm M.S. angle. Each leg will be provided with a cleat of size 50x50x6mm MS angle of length 150mm. Grouting of legs will be done with concrete ratio of M15 upto 700mm with a chimmey size 300mm x 300 mm also earthing of wire mesh at two places with main mat through 25x6mm MS flat.

Designing of submitting of cables schedule and inter connection diagram for 132 KV & 33 KV bay as per drawing and manuals (to be supplied by Deptt.) for equipments in the control room and switchyard.)

Laying of following sizes of control cable in the cable trench from control relay panel to various equipments/marshalling boxes/J.B. etc. in switchyard as per cable schedule, its saddling at every 75mm. Distance with M.S. saddles of size 25x3mm. Size including carriage of cable drums from store top laying site and shifting back to store and all other assocaited work to complete the job satisfactorily as per technical specification.

2Cx2.5sq. Mm Unarmoured

4Cx2.5sq. Mm Unarmoured

6Cx2.5sq. Mm Unarmoured

10Cx2.5sq. Mm Unarmoured

Termination of following sizes of cables 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 providing ferrules and Nos. for each core of cables and its termination with crimping type lugs of Dowell/Tension make and all other associated work to complete the jobs satisfactorily as per technical specification.

2Cx2.5sq. Mm Unarmoured

4Cx2.5sq. Mm Unarmoured

6Cx2.5sq. Mm Unarmoured

10Cx2.5sq. Mm Unarmoured.

Technocrat Electrical

Hi-tech power transmission