works at substations

Amount

Wok Portion , Sorting, Stacking, Loading, Carriage & Unloading of Structure

Sorting, counting, stacking, erection mark wise and loading of G.I. structure as per allotment on private truck/trailer at EFU Naini Prayagraj.

Safe carriage of loaded structure from EFU Naini Prayagraj to 220kV substation Loni. (Approximate distance is 1500Km To & Fro).

Unloading of carriage structure from truck/trailer including shifting, counting & proper stacking of G.I. structure at 220 kV substation Loni as per direction of SDO/JE.

Erection of Sub-Station Structures

Sorting, stacking & Erection of Main & Auxiliary structure lattic type CCM, CGM, EKR, BBR, ABL, ALP etc. consisting of coloumn, beam, peak, mast etc. and auxilary structure for installation of CTs, PTs, LAs, etc. The job consist of shifting of all material from store to site of erection, erection of structure as per drawing with the help of GI nut & bolt, flat & spring washer, matching the hole, cutting & matching of member if required including cost of all men and T & P excluding GI structure Nut & bolt to complete the work. Erection of Main & Auxiliary structure lattice type BCT, ALP etc. upon foundation and its proper tightening.The work also includes Making hole in part of GI main/auxilary structre / cutting of GI angle drilling of hole existing/ deffective structure /plate/Angle and grinding machine with all cost of men, T & P etc.

Erection of following Equipments/Panels as per technical specification, manual and instruction as per direction of supervising engineer.

36 KV Vacuum Circuit Breaker

36 KV CT Ratio 400-200/1 , 2 Core

36 KV line isolator with post insulator (Manual)

36 KV Bus isolator with post insulator (Manual)

33 KV Triple feeder control and relay panel (Conventional)

30 KV Surge Arrestor

Metering Cubical Panel

Earting Equipments:- Earthing of 30 KV LAs by 40 mm dia 3000 mm long conical shape MS electrodes. Placing it inside the ground in rectangular shape and connecting all 6 Nos electrodes with 75x10 mm MS flat laid on its edge in rectangle shape strictly as per drawing.

30KV LA ( Rectangle shape by 06 electrodes) with 40 mm dia round bar.

Earthing of equipments by cutting straightening, bending, laying 700 mm below ground and above ground of following size of MS flat for earthing of main and auxiliary structure, equipments structure including welding with main earthmat and with object to be earthed, excavation of trenches, its back filling, to complete the work in all respect.

MS Flat of size 75x10 mm

MS Flat of size 50x6 mm

Painting of MS flat of different size after cleaning of rusted surface 1st coat of Red Oxide and 2 coat of Bus Green Paint to complete the work.

MS Flat of size 50x6 mm

33 KV BUS BAR STRENGTHENING, JUMPERING & STRINGING WORKS

Dismantling and lowering down of all 3-phase of 33 KV Main Bus for capacitor bank II & III, single span of 30 meter with the help of suitable hardware fittings and T&P complete in all respect.

Stringing of all 3 phases(R,Y & B phase) of 33 KV bus-bar with different type conductor and different length of span as mentioned below. The work includes cutting & bending of conductor, fixing of single/ double bolted type tension/suspension fitting. Hoisting of disc insulator and shifting of material from store site to erection site and all other associated work to complete the work satisfactorily as per drawing and technical specification.

33 KV Main Bus Twin Zebra (30/36 Meter span)

33 KV Transfer Bus Single Zebra 30 Meter span

Jumpering, interconnection of equipment with specified conductor of various 33 KV equipments with Main/Transfer/Jack Bus Bar of ACSR Single / Twin Zebra/Panther conductor. The work includes cutting of condutor, bending in proper shape, clamping with the help of clamps and all other associated work to complete the work.

33 kV bays, LA, PT and Section Isolator etc.

CABLE LAYING & TERMINATION:- Laying of following size control cable in trench/cable trays from different control room equipments to 33 KV CB, CT, CVT and their junction boxes, isolator box and other outdoor equipements installed in 33 KV switchyard as per cable schedule including carriage of cable drum from store and all other associated works

2 Core x 2.5mm2

4 Core x 2.5mm2

6 Core x 2.5mm2

Termination of following sizes control cables as per cable schedule including making necessary holes in glands plate/box wherever required fixing of cable glands of appropriate size, luging and ferruling of each core and other associated works to complete the job satisfactorily (Rates of termination of control cable including all cores of cable at both end). Lugs & Cable glands to be provided by contractor.

2 Core x 2.5mm2

4 Core x 2.5mm2

6 Core x 2.5mm2

Earth Mat (Extension)

Laying of 40mm dia MS round bar 700 mm below the ground level including cutting, straightening, welding & excavation of trench, back filling of trench after laying of earth mat including shifting of M S round bar from store place at the Sub-Station to switchyard.

Fabrication of 3 Meter long electrodes with 40 mm dia MS round bar having 150 mm long conical shape by digging cutting, straightening etc. and then placing it vertical inside the ground with Top 700mm below the ground level including shifting of MS round bar from storage place at the Sub-Station to switchyard.

Making a cross joint of above laid 40 mm dia MS round bar 700 mm below the ground level by due welding at all 4 corners including welding of suitable size 2 No MS angle pieces on opposite corners of the cross joint.

Making of end joint of above laid 40 mm dia MS round bar with Top of the already vertically pierced MS electrodes 700mm below the ground level by due welding.

Making of 300mm long lap joint of above already laid round bar to connecting existing earth mat of the Sub-Station.

DISMENTALLING & ERECTION OF 33 KV, 10 MVAR CAPACITOR BANK

Opening of 33kV Capacitor bank bay control cable wiring and shifitng/termination to new place including provision of cable looping in switchyard including gland, ferrul, dressing etc.

Opening of all connected jumper from 33 KV main bus.

Dismantling and lowering down of all 3-phase of 33 KV capacitor bank bus, all 3 span with the help of suitable hardware fittings and T&P complete in all respect.

Dismantling of structure including- (CCM-4, CGM-2, ALP-8, ABL-2)

Dismantling of 36KV NCT including jumpers

Dismantling of 36KV BI/LI including jumpers

Dismantling of 36KV CT/ Junction Box including jumpers

Dismantling of 3 ph Reactor oil cooled including jumpers

Dismantling Capacitor Bank cell including PI, structure & jumpers

Erection of structure including-(CCM-4, CGM-2, ALP-8, ABL-2)

Erection of 36KV NCT including earthing of equipment, structure & painting of earthing strip as per norms.

Erection of 36KV BI/LI including earthing of equipment, structure & painting of earthing strip as per norms.

Erection of 36KV CT & Junction Box including earthing of equipment, structure & painting of earthing strip as per norms.

Erection of 3 ph Reactor oil cooled including earthing of equipment, structure & painting of earthing strip as per norms.

Erection Capacitor Bank Units with PI & structure including earthing of equipment, structure & painting of earthing strip as per norms.

Stringing of all 3-Phases of 33 KV main bus, single span of ACSR Panther conductor, including fitting of hardwares, hoisting of insulator, complete in all respect. (Aprox. 20mtr)

Fabrication & connection of Panther jumpers complete in all respect.

Supply Portion

Bolted type single Tension fitting for Zebra Conductor suitable for 1x4 No Disc Insulator without buckle and hardware set as per techinical specification.

Bolted type single Tension fitting for Zebra Conductor suitable for 1x4 No Disc Insulator with turn buckle and hardware set as per techinical specification.

Bolted type Single Tension fitting for Twin zebra Conductor suitable for 1x4 No Disc insulator with out buckle and hardware set as per techinical specification.

Bolted type Single Tension fitting for Twin zebra Conductor suitable for 1x4 No Disc insulator with turn buckle and hardware set as per techinical specification.

Bolted type single suspension fitting for Twin Zebra Conductor suitable for 1x4 No Disc Insulator without buckle and hardware set as per techinical specification.

4 Bolted Type PG Clamp suitable for Zebra to Zebra conductor complete with HDG nut bolt & washer as per techinical specification.

4 Bolted Type PG Clamp suitable for Zebra to panther conductor complete with HDG nut bolt & washer as per techinical specification.

4 Bolted Type PG Clamp suitable for panther to panther conductor complete with HDG nut bolt & washer as per techinical specification.

Bimetallic 33 KV Isolator L clamp made of aluminum alloy LM-6 for conductor with HDG nuts & bolts and washer as per technical specification .

Bimetallic Bus Post Insulator clamp made of aluminum alloy LM-6 for Twin Panther conductor with HDG nuts & bolts and washer as per technical specification .

Bimetallic 250mm Spacer made of aluminum alloy LM-6 for Twin Zebra conductor with HDG nuts & bolts and washer as per technical specification .

Supply of Hot dip GI hexagon round hexagon head Transmission tower Bolts, Nuts & washers-

SPRING WASHER (16X3.5MM)

PACKING WASHER (16X6MM)

PACKING WASHER (16X8MM)

50 x 6 mm M.S. Flat

Technocrat Electrical (BID ID -5283858)

Gupta Elect and Engg Works (BID ID -5289062)