TRANSPORTATION, INSTALLATION AND COMMISSIONING WORKS OF ERECTION OF 315MVA 400/220KV

Amount

Erection of 315MVA 400/220KV ICT (BHEL make and Repaired by M/s. Aditya) including Transportation of the same from 400KV Sub Station Sarojni Nagar, Lucknow to 400KV Sub Station Sarnath, Varanasi, with all Cost of Men, Misc. Consumables, T&Ps, Crane / Hydra, Centrifuging Machine, CFM Operator, CFM Lubricant etc. Required for Satisfactory Completion of the Job, as per Technical Specifications & Direction of the Supervising Engineer, as per Details below :

Draining of Complete Oil from 315MVA Transformer at 400KV Sub Station Sarojni Nagar, Lucknow into 209 Litre Capacity Oil Drums.

Creating the Vacuum & Filling with (-) 40 °C Due Point Nitrogen in Empty Tank of Transformer at 400KV Sub Station Sarojni Nagar, Lucknow and Maintaining the N2 Pressure up to Erection.

Shifting of Main Tank of the 315MVA 400/220KV Transformer to near Loading Place at 400KV Sub Station Sarojni Nagar, Lucknow upto 20 Meter Distance (approx.) including Turning of Transformer Tank, as Required.

Additional Shifting of the Tank of above Transformer upto 20 Meter Distance. (1 Job for every 5 Meter and / or Part thereof)

Loading of the Tank of the above 315MVA Transformer on Trailer, Jacking the Transformer Tank for Placing of Wooden Planks under Transformer Tank & similarly Lifting the Transformer 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 Tightening of Transformer mounted on Trailer with the help of Steel Wire Rope & Heavy Turn Buckle for Safe Transportation at 400KV Sub Station Sarojni Nagar, Lucknow.

Shifting of Accessories including Transformer Oil in Drums of the above 315MVA Transformer to near Loading Place at 400KV Sub Station Sarojni Nagar, Lucknow, as Required and Loading on Trucks to be Arranged by the Contractor.

Providing of Impact Recorder before Start of Carriage of Main Tank of 315MVA T/F at 400KV Sub Station Sarojni Nagar, Lucknow to 400KV Sub Station Sarnath, Varanasi for checking of any Impact on Core & Winding inside the Transformer Main Tank after complete of journey. Report of Impact Recorder has to submit to Supervising Engineer within 10 Days by the Contractor.

Safe Carriage of Main Tank of the 315MVA Transformer by Private Trailer to be Arranged by the Contractor from 400KV Sub Station Sarojni Nagar, Lucknow to 400KV Sub Station Sarnath, Varanasi (Route via Lucknow Faizabad Gorakhpur Mau a Azamgarh Lalganj Sarnath, Varanasi, Distance approx. 525 Km) Excluding the Cost of Transit Insurance. Transit Insurance shall be Got Done by the Contractor which shall be Reimbursed on Actual Basis.

Safe Carriage of Accessories including Transformer Oil in Drums of the above 315MVA Transformer by Private Trucks to be Arranged by the Contractor from 400KV Sub Station Sarojni Nagar, Lucknow to 400KV Sub Station Sarnath, Varanasi (Distance approx. 300 Km) Excluding the Cost of Transit Insurance. Transit Insurance shall be Got Done by the Contractor which shall be Reimbursed on Actual Basis.

Unloading of the Tank of the 315MVA 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 towards Ground Slowly & Removing the Wooden Sleepers under the Tank and Unloading of Accessories including Transformer Oil in Drums of the above 315MVA Transformer to Safe Un-Loading Place from Trucks and Shifting / Stacking of same to near Erection Site at 400KV Sub Station Sarnath, Varanasi.

Shifting of Main Tank of the 315MVA 400/220KV Transformer to its Plinth from Place of Unloading upto 20 Meter Distance including Turning of the Tank, as Required at 400KV Sub Station Sarnath, Varanasi.

Additional Shifting of the Tank of above Transformer upto 80 Meter Distance. (1 Job for every 5 Meter and / or Part thereof).

Providing of Dry Air at the Time Opening of Blanking Plate for Erection of 315MVA Transformer Main Tank and Filling of Dry Air of dew Point (-) 40 °C or Better for Completion of Work. The Work shall including Connecting Pipe as Required Measuring Due Point Values of Dry Air.

Providing of new Gaskets of Radiators, HV / LV / Tertiary Bushing, and Oil Pipe Lines etc. excluding Main Tank. (Crane shall be Arranged by the Contactor).

Complete Erection of the 315MVA Transformer including its Radiators, Conservator Tank, Turrets, Connecting Pipe Lines, HV / LV / Neutral Bushings, Cooling Fans, OLTC Drive Mechanism Box, RTCC Panel, Oil Pump, Marshalling Box, OTI, WTI, Capillary Tubes etc. and attending the oil leakage if any satisfactory completion of work.

Complete Evacuation of 315MVA Transformer Main Tank and Filling of Dry Air of dew Point (-) 40 °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 Centrifuging Machine. The Work shall including Connecting Pipe of Machine as Required Measuring Due Point Values of Dry Air after every Cycle till the Required Value is Achieved.

Creating the Vacuum inside the 315MVA Transformer before Filling the Transformer Oil including Vacuum Stand Test.

Filling of Fresh Transformer Oil from Transformer Oil Drums in 20KL Capacity Oil Tanker and then Centrifuging of the Transformer Oil by Ultra High Vacuum Oil Filtration Plant after Connecting the Centrifuging Pipes with Oil Tanker to Oil Filtration Plant including Taking the BDV Values of Oil, Periodically (every 2 hrs.) and also Taking the Water Content (PPM) Values till the Required Value is Achieved.

Filling & Topping Up of Centrifuged Transformer Oil under Vacuum in Main Tank, Radiators, Conservator Tank etc. Centrifuging / Dehydration of the Complete Transformer Oil of 315MVA Transformer by Ultra High Vacuum Oil Filtration Plant after Connecting the Centrifuging Pipe with Transformer Tank to Oil Filtration Plant including Taking the BDV Values of Oil and IR Values of the Transformer Bushings, Periodically (every 2 hrs.) and also Taking the Water Content (PPM) Values till the Required Value are Achieved including Attending the Oil Leakages, if any.

Overhauling of Diverter Switch after Removing of Oil and Dirty Transformer Oil from its Chamber Filling the Fresh Centrifuged Transformer Oil its Centrifuged Circulation as per Norms of Transformer.

Making of Delta for Neutral Earthing by due Fabrication of 3 No. 3 Meter Long Electrodes of 36 / 40 mm dia. M.S. Round Bar, its Piercing under the Ground at equal Distance of 1 Meter at 700 mm Depth by Digging of Earth and Connecting all the 3 No. Electrodes with 75 mm × 10 mm size M.S. Flat, Connecting the Delta with existing Earth Mat and Taking out the M.S. Riser by due Cutting, Bending, Welding etc. of the M.S. Flat. (M.S. Round Bar / M.S. Flat shall be Provided by the Department as per Requirement)

Earthing of Main Tank, Marshalling Box, OLTC Drive Mechanism Box, Transformer Neutral etc. of 315MVA Transformer with the help of 50 × 6 mm / 75 × 10 mm size M.S. Flats to be Provided by Department, its Jointing with already Laid Earth Mat & Delta at 2 Places including necessary Modifications in existing Earthing Strip Support Structure and then, Painting of the Earthing Strips above Ground Level with 2 Coats of Synthetic Enamel Paint in Bus Green Colour.

Jumpering of HV side Bushings of the 315MVA Transformer to Connect with HV side CTs through 400KV LAs with ACSR Twin Moose Conductor, associated Terminal Connectors etc.

Jumpering of IV side Bushings of the 315MVA Transformer to Connect with 220KV Jack Bus with the help of ACSR Twin Moose Conductor, associated Terminal Connectors, P.G. Clamps etc.

Making Terminations / Connection of the Control & Power Cables as per new Cable Schedule of 315MVA Transformer, RTCC Panel, Control & Relay Panel, Cooling Fans, Pumps, Marshalling Box, OLTC Driving Mechanism etc. using new Cables including Laying, Dressing & Binding of Control Cables as per Site Requirement alongwith Making necessary Holes in the Gland Plate / Box, wherever Required including Providing & Fixing of Cable Glands of appropriate sizes, Providing of Ferrules etc.

Complete Outside Spray Painting of the above 315MVA Transformer including its Main Tank, Main & OLTC Conservator Tanks, Radiators, Headers, associated Pipe Lines, Support Structures, Marshalling Box etc. by 1 Coat of Red Oxide Primer and then Applying 2 Coats (The 2nd Coat of Paint shall be Applied at the Gap of 48 hrs. when 1st Coat of Paint is Done & Checked by concerned (S.D.O. / J.E.) of Smoke Grey Colour 1st Quality Synthetic Enamel Paint of ASIAN / BERGER / NEROLAC make with the help of Spray Painting Machine after due Rubbing of the Rusted / Scaled Surfaces with Sand Paper & Wire Brush and Cleaning & Washing of the Dust / Dirt / Oil Deposits etc. from the Surfaces.

Erection, Hydraulic Testing & Commissioning of Complete Mulsifire System on 315 MVA, 400/220KV Transformer by installation of high velocity Automatic Water Spraying System including Laying, Fixing & Fitting of G.I. Pipe Lines complete with Elbows, Tees, Sockets, Flanges, Bends, Fire Nozzles of required sizes, Q.B. Detector Assembly with Quartzoid Bulbs, Pressure Gauges, Pressure Switches, Deluge Valve etc. after due Cutting, Extending of Pipe Lines, Providing of Gaskets / Packing of required sizes including Installation of 80 mm dia. G.I. Pipe Supports by due Construction of RCC Foundation with Grouting of Foundation Bolts, Providing & Fixing of Round Clamps on Support Pipes alongwith 2 coats Painting of Water Pipe Lines in P.O. Red Colour, Air Pipe lines in Sky Blue Colour, Pipe Supports in Black Colour and Earthing Strips in Bus Green Colour Synthetic Enamel Paint after applying of 1 coat of Red Oxide Primer, with all cost of Men, Materials, Misc. Consumables, T&Ps etc. required for satisfactory completion of the work as per Technical Specifications & direction of the Supervising Engineer, as per details below :

Supply, Installation, Testing & Commissioning of quick Opening Flood, Deluge Valve of HD of 150NB as per Max working pressure 10 Kg/cm2, as per specification (HD / Mather Platt make).

Supply, Installation, Testing & Commissioning of 150NB Gate Valve (Sluice Valve / Butterfly Valve) as per IS specification (IS Code: 14846) of (Zoloto / Kartar / Sir make).

Supply & Installation & Testing Commissioning of “Y” Type Strainer (Kartar / Sir / Kalpana / Agro make) of dia 150 mm, Max working pressure 7 Kg/cm2.

Supply & Laying of different sizes of MS Pipe ‘B’ class for fire Water Pipe Line / Support Pipe as per IS specification (IS Code-1239) as per drawing enclosed. Complete with elbow Tee, Socket, Reducer etc. with Anti-Corrosive treatment with detail as below (1 No. = 6 Meter) :

Supply and Laying of different size of GI Pipe ‘B’ Class for Fire Detector / Water Pipe Line as per specification (IS Code-1239) and drawing enclosed complete with Elbow, Tee Socket, Reducer etc. (1 No. = 6 Meter)

Supply & Installation of Flanges as per IS-1538 of different sizes as per drawing work include proper butt welding with pipe & proper packing and coupling with Nut & Bolt (1 Set = 2 No. Flanges)

Supply & Installation & Commissioning of High Velocity Water Spray Nozzles having Flow Capacity - 3.5 Kg/cm2 and Spray Cone Angle - 90°.

Supply & Installation & Commissioning of Quartzoid Bulb detectors (QBD), Operate at 79°C, Sensing at rated Temperature for actuation of the element in 10-12 Seconds.

Supply, Installation, Testing & Commissioning of Fixed Differential Pressure Switch (Danfoss / Indfoss make), Range 1-10 Kg/cm2.

Pressure Gauge (HD make) as per IS specification IS code 3624, Accuracy 1/+5%.

Construction of Mulsifire Hut of Size 10 feet x 7 feet x 7 feet for Protection against Direct Sunlight and Rains of Deluge Valve, Pressure Gauges to avoid mal operation of above equipments by Grouting of MS Angle / Pipe of suitable size (To be provided by the Department) with Cement Concrete with Cement, Coarse Sand and 20mm Stone Ballast in ratio of 1:2:4, Providing & Fixing of Asbestos Cement Sheet (Minimum 6 mm thickness) at Roof Top, making Steel Frame for Hut with the help of MS Angle / Pipe of suitable size including Fabrication, Erection & Fixing of Asbestos Cement Sheet with J-hooks of Hut & frame and then Painting of MS Angle / Pipe and AC sheets with two Coats of Standard make Red Synthetic Enamel Paint of first Quality after cleaning of Rust, Dust and Oily Surface including cost of all material Labour and T&P as per Technical specifications.

Perfect Power Transformer Associates

Meena Elect and Engg Works