WORK OF CARRIAGE OF 100 MVA T/F FROM 220 KV S/S BANSI TO 220 KV S/S HATA , ERECTION, REPLACEMENT OF GASKETS, CENTIRUSING AND OTHER ASSOCIATED WORK OF 100 MVA T/F ALONG WITH ITS ASSOCIATED BAYS AND SUPPLY OF HARDWARE FITIINGS AT 220 KV S/S HATA (KUSHI

Amount

Work Portion:-

Laying of 40mm dia MS round bar 700 mm below the ground level by the cutting straightening welding painting 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.

Erection of Sub-Station Structures

Sorting and stacking of structures

Erection of Main & Auxiliary structure lattic type CTM,DTM, ETM,FTM,YMM,XMM, BCT, 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.

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.

245 KV SF-6 Circuit Breaker.

245 KV Current Transformer.

245 KV standard Isolator

245 KV Tandam Isolator.

245 KV Post Insulator for support.

198 KV Lighting Arrestors.

145 KV SF-6 Circuit Breaker.

145 KV Current Transformer.

145 KV standard Isolator.

145 KV Tandam Isolator.

145 KV Post Insulator for support.

120 KV Lighting Arrestors.

Erection and mounting of 245/145 KV CT, Junction Box.

220 KV Control Pannel of 100 MVA Transformer Pannel

132 KV Relay Pannel of 100 MVA Transformer Pannel

Erection of Power Receptical/Power supply cubical.

Erection of Bay M.box.

Earthing work.

Delta earthing of 198 KV/120 KV LAs and neutral of Transformer by 40 mm dia 6000 mm long conical shape its placing inside the ground in rectangular shape and connecting all 3/6 Nos electrodes with 75x10/50x6 mm MS flat laid on its edge and then this rectangle/tringle shape strictly as per drawing.

198/120 KV LA ( Rectangle shape by 06 electrodes) with 40 mm dia round bar.

100 MVA Transformer (Tringular shape by 03 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. Transformer body and its neutral point including welding with main earthmat and with object to be earthed, excavation of trenches, its back filling, to complete the work.

Laying MS Flat of size 75x10 mm

Laying MS Flat of size 50x6 mm

Laying MS Flat of size 25x6 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.

Laying MS Flat of size 75x10 mm

Laying MS Flat of size 50x6 mm

Laying MS Flat of size 25x6 mm

Bus Bar Stringing and Jumpering.

Complete cleaning of disc insulators for all phases by suitable liquid cleaner, testing of IR value by insulation tester, making series connection & ready for hoisting with all cost of men T & P to complete the work.

Cleaning of disc insulator of 220 KV string.

Cleaning of disc insulator of 132 KV string.

Stringing of various Single phase Jack Bus of 220 KV, 132 KV and 33 KV 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 fitting/suspension. 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.

220 KV Main Bus and Transfer Bus Tarantulla and Zebra conductor respectively

220 KV Jack Bus for 100 MVA Transformer for Zebra conductor.

132 KV Main Bus and Transfer Bus Tarantulla and Zebra conductor respectively.

132 KV Jack Bus for 100 MVA Transformer by Zebra conductor respectively.

Hoisting of 220 KV /132 KV string under Beam to pass the jumper including hanging of disc insulator and suspension fitting complete with all work.

Jumpering, interconnection of equipment with specified conductor of various 132/33 KV equipments with Main/Transfer/Jack Bus Bar of ACC Tarantulla / ACSR Moose/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.

Jumpering of 220 KV Main Bus & Transfer Bus single Zebra.

100 MVA Transformer Bay 220 KV side of single Zebra conductor.

100 MVA Transformer Bay for 132 KV side of single Zebra conductor.

132 KV Bus side Jumper Main & Transfer Bus.

Cable Laying and Termination work.

Laying & Termination of following size control cable in trench/cable trays from different control room equipments to 220/132/33 KV CB, CT, CVT and their junction boxes. Transformer marshalling box, isolator box and other outdoor equipements installed in 132 KV switchyard as per cable schedule including carriage of cable drum from store and all other associated work.

2 Core x 2.5mm2

4 Core x 2.5mm2

6 Core x 2.5mm2

10 Core x 2.5mm2

Termination of control cable.

Laying of power cable of 3.5 core 50 sq. mm size 500mm below ground level including excavation of trench and laying of cable putting of brick and filling of ganga sand over the cables then filling of earth with all cost of men, material and T & P for the completion of Job.

Termination of above power cable by providing suitable size aluminum dowell make lugs its crimping and connecting with equipment including cost of lugs and all other associated work to complete the Job.

Shifting, loading, carriage and unlodading of 220/132 KV 100 MVA Transformer from 220 KV substation Bansi to 220 KV substation Hata Kushinagar and its erection,testing and commissioning at 220 KV sub-station Hata Kushinagar .

Draining of complete oil from 100 MVA Transformer at 220 KV S/S Bansi into 209 litre drums.

Partly dismantling of 100 MVA T/F ( CGL make) and proper blanking along with proper packing at 220 KV S/S Bansi Sidharthnagar

Create the vacuum and filling of empty tank of Transformer with -400C due point Nitrogen/Dry Air at 220 KV S/S Bansi Sidharthnagar maintaned the N2 pressure up to 220 KV S/S Hata Kushinagar.

Shifting of main tank of 100 MVA 220/132 KV T/F with accessories to near loading place the Approx. up to 20 meter including turning of T/F tank if required at 220 KV S/S Bansi

Additional shifting 30 Mtr. @5 Mtr./job

Loading of above 100 MVA 220/132 KV T/F on Trailer, jacking the Transformer tank for placeing of wooden planks under T/F tank & similarly lifting the T/F tank by jacking & placing continuous wooden planks until platform comes at the height of trailer bed, then shifting the Transformer tank from wooden platform to trailer bed proper tighting of T/F mounted on trailer with the help of wire rope & heavy turn buckle for safe transportation.

Safe carriage of 100 MVA T/F main tank with all accessories with T/F oil by private trailer/truck from 220 KV S/S Bansi to 220KV S/S Hata Kushinagar by Hydraulic multi Axel Traliler distance being approx. 170 Km. Insurance shall be got done by the contractor as per direction of Supervising Engineer which shall be reimbursed on actual .(Via Basti highway)

Unloading of 100 MVA Transformer from Trailer jacking the Transformer tank for placing the rail under the tank & shifting it to wooden platform, removal the rail under the Transformer tank on wooden sleeper, lowering the tank toward ground slowly & removing the wooden sleepers under the tank at 220 S/S Hata Kushinagar.

Shifting of 100 MVA T/F with accessoris from unloading point to plinth with the help of rail pulling device sleepers etc. upto distance of Approx. upto 20 Mtrs. Including turning if required at 220 KV S/S Hata Kushinagar

Additional shifting 10 Mtr. @5 Mtr./job

Replacement of all new gasket after necessary fabrication of Top cover, radiators, HV/LV/ tertiary bushing, oil pipe lines etc. (Crane shall be arrange by Contactor).

Complete evacuation of 100 MVA Transformer main tank and filling of Dry Air of dew point-400 C or better in vacuum up to pressure of 0.25Kg/Cm2 and the again evacuating the Transformer tank after required time interval (approx 12/24 Hrs) using centrifusing machine the work shall including connecting pipe of machine as required measuring machine the work shall including connecting pipe of machine as required measuring Due point values of N2 after every cycle till the required value is achieved.

Scratching of old painted surface & Panting of complte 100 MVA 220/132KV Transformer 1 coat of red oxide and 2 coat of smoke grey/almunium enamel paint as per direction of site incharge.

Filling the Transformer oil from oil drum to oil tanker and its centrifuging upto required BDV and creating the vacuum inside the Main tank and filling of Transformer oil in main tank.

Complete erection of 100 MVA Transformer (M/S CGL make) and accessories HV/LV/TV/N bushing Radiators, conservator tank, a frame, Header oil pipe line, pump cooling fan etc. Oil filling up to required level.

Centrifuging the Transformer oil in Main tank and circulate the Transformer oil through centrifuging machine and taking BDV time to time.(Centrifuging tention Machine shall be provided by the contractor).

Following testing works are required to be carried out for 100 MVA 220/132 T/F as per details given below.

Tan Delta testing of bushing & T/F winding.

Winding Resistance Test

Complete oil Testing (BDV, DGA, PPM etc.)

IR Value of T/F with PI

Earth Resistence of Delta earthing

Installation of mulsifire system on 100 MVA

Installation of high velocity automatic water spraying system for 100 MVA T/F including laying of fire direction water pipe line valves Quartzoid, HVWS nozzles along with all material complete .

Supply & installation testing commissioning of quick opening flood, duluge valve of HD of 150 NB as per Max working pressure 10 kg/cm2 as per specification (HD/ Mather Platt/equivalent ) (in Nos)

Supply & installation & Commissioning of gate valve (sluice Valve/Butterfly valve ) as per IS specification (IS Code: 14846) Zoloto/Kartar/Sir make )(In nos)

Supply & installation & Testing commissioning of "Y" Type stainer (Kartar sir / Kalpana/agro make) of dia Max working pressure 7 Kg/cm2 (in Nos)

Supply & laying of different size of M.S pipe B class for fire water pipe line/ support as per IS specification (IS Code-1239) Complete with elbow Tee socket reducer etc. with anti-corrosive treatment with detail as below.

Supply & laying of different size of GI pipe B class for detection water pipe line as per specification (IS Code-1239) as per drawing enclosed complete with elbow Tee Socket reducer.

Supply & Installation of Flanges as per IS-1538 of different size as per drawing work include proper butt welding with pipe & proper packing and coupling with packing coupling with Nut & Bolt.

Supply,Installtion & Commissioning of high velocity water spray nozzeles flow 3.5Kg/cm2 Spray core angle 900.

Suppy & Installation & Commissioning of Quartzite bulb detectors (QBD) operate at 900 C sensing at rated temp for actuation of the element 10-12 sec.

Supply, Installation & testing Commissioning of fixed differential swicth (Danfoss/Indfoss Make) type pressure switch range 1-10 Kg cm2.

Pressure gauge as per IS Specification IS Code-3624 Accuracy 5%

Supply portion :-

Bolted type single Tension fitting for Tarantulla Conductor suitable for 1x16 No Disc insulator without buckle and hardware set as per technical specification.

Bolted type single Tension fitting for Zebra Conductor suitable for 1x16 No Disc Insulator without buckle and hardware set as per techinical specification.

Bolted type single Tension fitting for Tarantulla Conductor suitable for 1x10 No Disc insulator without buckle and hardware set as per techinical specification.

Bolted type single Tension fitting for Zebra Conductor suitable for 1x10 No Disc insulator with out buckle and hardware set as per techinical specification.

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

4 Bolted Type PG Clamp suitable for Tarantulla to Tarantulla conductor complete with HDG nut bolt & washer 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.

Bimetallic 220 KV Bus Isolator clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nuts & bolts and washer as per technical specification .

Bimetallic 220 KV Circuit Breaker clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nuts & bolts and washer as per technical specification .

Bimetallic 220 KV Tandom Isolator clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nuts & bolts and washer as per technical specification .

Bimetallic 220 KV CT clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nuts & bolts and washer as per technical specification .

Bimetallic 220 KV LA clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nuts & bolts and washer as per technical specification .

220 KV Bus Post clamp suitable for Zebra conductor complete with hot dip galvanized nut bolts & washer as per technical specification.

132 KV Bus Post clamp suitable for Zebra conductor complete with hot dip galvanized nut bolts & washer as per technical specification.

Bimetallic terminal connector for 100 MVA T/F HV side bushing rod 30 mm dia made of aluminum alloy LM-6 suitable for ACSR Zebra conductor of matching with bushing rod complete with hot dip galvanized nut & bolts as per technical specification.

Bimetallic terminal connector for 100 MVA T/F LV side bushing rod 30 mm dia made of aluminum alloy LM-6 suitable for ACSR Zebra conductor matching with bushing rod complete with hot dip galvanized nut & bolts as per technical specification.

GI Nut, Bolt and washer of different sizes

Bimetallic 132 KV CT clamp made of aluminum alloy LM-6 for Zebra conductor with HDG nut & bolts and washer as per Technical specification.

132 KV Isolator clamp suitable for Zebra conductor complete with hot dip galvanized nut, bolts and washer as per technical specification.

132 KV Circuit Breaker clamp suitable for Zebra conductor complete with hot dip galvanized nut, bolts and washer as per technical specification.

132 KV Tandom Isolator clamp suitable for Zebra conductor complete with hot dip galvanized nut, bolts and washer as per technical specification.

132 KV LA clamp suitable for Zebra conductor complete with hot dip galvanized nut, bolts and washer as per technical specification.

supply of Bay MB( BMK) with canopy type for out door installation of M.S.sheet of 14SWG size 155x800x300mm with duly power coated .Bay MB should be provided with 160Nos. Disconnectable type connectors of 16Amp fixed on channel . 20Nos hole with 20mm dia glands on gland plate with lighting facalities of 16watt LED bulb. Bay MB should have both side doors & shall be dust, weather proof and vermin proof with proper locking arrangements .

Supply of cable gland of different sizes

i- 2C x 2.5 mm2 (16mm)

ii- 4C x 2.5 mm2 (19mm)

iii-6C x 2.5 mm2 (22mm)

iv- 10C x 2.5 mm2 (25mm)

Supply of copper lug of different types.

i- Ring type of size 2.5 mm

ii- Pin type of size 2.5 mm

Supply of M.S. Flat of following sizes

i- 75 x 10 mm M.S. Flat

ii- 50 x 6 mm M.S. Flat

iii- 25 x 6 mm M.S. Flat

Meena Elect and Engg Works

Perfect Power Transformer Associates