Bids Are Invited For 1 Repair And Maintance Disconnecting Electrical Connections From Ht And Lt Sides Of Old Serviceable / Damaged / Burnt Step Down Transformers Of Any Descriptions, Capacity 100 Kva, Any Type And Taking Down From The Platforms Or Mounted On Exisiting Position ( Four Poles / Two Pole Structure ) By Hydraulic Cranes Of Suitable Capacity And Transporting By Truck / Lorry To The Workshop, Opening Top Cover, Draining Out The Transformer Oil In Clean Barrels, Cleaning Of Sludge From Oil Tank And Conservator Tank, Cleaning And Polishing Of Tapping Contact Point, Refitting Top Cover With Replacement Of Studs, Nuts, Bolts, Washers And Gasket After Repairs / Replacement Of Unserviceable Parts And Cleaning The Transformer And Making The Transformer Absolutely Leak Proof, Pouring In The Insulating Oil In The Transformer, Placing In Original Position On Four Pole / Two Pole Structure / Platform At Site And Making All Ht / Lt Connections Including Testing The Transformer After Necessary Repairs, Complete All As Specified And As Directed By Engineer-In-Charge. 2 Repair And Maintance Replacement Of Old Unserviceable / Damaged Ht Bushing Assembly With New Ht Bushing Assembly ( Set Of Three ) With Insulated Brass Stud Including Nuts, Bolts And Washers, Suitable For Transformer Of Any Type, Capacity 200 Kva, Complete All As Specified And As Directed By Engineer-In-Charge. 3 Repair And Maintance Replacement Of Old Unserviceable / Damaged Tap Changing Assembly With New Tap Changing Assembly, Off Load, On Ht Winding To Vary The Voltage ±7.5%, In Steps Of 2.50%, Including Necessary Connection, Ht Winding, Re-Insulation For Complete Functioning Of Tap Changer, Transformer Capacity 200 Kva, Complete All As Specified And As Directed By Engineer-In-Charge. 4 Repair And Maintance Replacement Of Old Unserviceable / Damaged Lt Bushing Assembly With Lt Bushing Assembly ( Set Of Four ) With Insulated Brass Stud Including Nuts, Bolts And Washers, Suitable For Transformer Of Any Type, Capacity 200 Kva, Complete All As Specified And As Directed By Engineer-In-Charge. 5 Repair And Maintance Replacement Of Old Unserviceable / Damaged Air Breather Assembly With New Air Breather Assembly With Silica Gel Suitable For 11 / 0.433 Kv Transformer Including Nuts, Bolts And Washers, Suitable For Transformer 200 Kva, Complete All As Specified And As Directed By Engineer-In-Charge. 6 Repair And Maintance Dehydration And Filtration Of Transformer Oil After Draining Out Oil From Transformer By The Dehydration Machine At Site Or Nearby Transformer Workshop To Achieve Di-Electric Strength 40 Kv At 4Mm Gap, Complete All As Specified And As Directed By Engineer-In-Charge. Note Cost Of Transportation Of Dehydration Machine And Other Required Materials And Tools, Plants Shall Be Deemed To Be Included In The Quoted Rates. 7 Repair And Maintance Supply Only Fresh Transformer Oil To Top.Up And Filling In The Existing Transformer, Di.Electric Strength Not Than 45 Kv, Meeting Bureau Of Indian Standards Is 335 1993 Reaffirmed.2005 Specification, Examined In A 100Mm Thick Layer At 270°C, Clear, Transparent And Free From All Type Of Suspended Matter Or Sediment, Complete All As Specified And As Directed By Engineer-In-Charge. 8 Repair And Maintance Supply And Fixing In Replacement Of Ht Coil Of Transformer Capacity 100 Kva, Made Of Super Enameled Copper Winding Wire Of Existing Insulation, Gauge And Specifications, Complete All As Specified And As Directed By Engr-In-Charge. Note Ht Coil Shall Have Same Number Of Turns Of Winding Wire And With Matching To Manufacturer Design. 9 Repair And Maintance Supply And Fixing In Replacement Of Lt Coil Of Transformer Capacity 200 Kva, Made Of Super Enameled Copper Winding Wire Of Existing Insulation, Gauge And Specifications, Complete All As Specified And As Directed By Engineer-In-Charge. Note Lt Coil Shall Have Same Number Of Turns Of Winding Wire And With Matching To Manufacturer Design. 10 Repair And Maintance Preparation Of Old, External Surface Of Transformers Capacity 100 Kva, By Removing The Scrap, Dust / Rust, Washing And Cleaning Including Cleaning And Spray Painting With Two Coats Of Synthetic Enamel Paint Including Numbering Mes No In White Colour Synthetic Enamel Paint, Complete All As Specified And As Directed By Engineer-In-Charge. 11 Repair And Maintance Supply, Laying & Testing Cable Xlpe Insulated, Screened, Pvc Bedded, Galvanized Steel Strip Or Wire Armoured, Electric Power Cables ( Heavy Duty ) With Stranded Aluminium Conductor, 11000 Volts Grade, Of Size 3 Core 95 Sq Mm Including Taking Up Old Unsv Cable Complete All As Specified And Directed By Engineer-In-Charge. 12 Repair And Maintance M & L Cable Jointing Kit For 11 Kv ( Earthed ) Grade Cable For Outdoor Termination Heat Shrink Type Joint Complete With Jointing Material And Accessories Suitable For 3 Core Xlpe Armoured Aluminium Conductor Cable Of Size 50 Sqmm To 95 Sqmm 13 Repair And Maintance M & L For Excavation In Trenches, Not Exc 1.5 Mtr Wide And Not Exc. 1.5M In Depth For Foundation And Getting Out Hard Dense Soil All As Specified And Directed. 14 Repair And Maintance M & L For Unwashed Sand Cushioning Below And Around Cable In Trenches With River Sand All As Specified And Directed. 15 Repair And Maintance S & F Burnt Bricks Sub Class B Designation For Cable Protection Laid Adjacent To Each Other Perpendicular To The Direction Of Cable In Trenches Complete All As Specified And As Directed. 16 Repair And Maintance M & L For Removal Of Surplus Soil To A Distance Not Exdeeding 50 Mtrs And Depositing Where Directed At A Level Not Exceeing 1.5 Mte Above The Starting Point All As Specified And As Directed. 17 Repair And Maintance M & L For Returning Filling In Including Spreading, Levelling, Watering And Ramming In Layers Not Exceeing 25 Mm Thick With Earth Obtained From Excavation All As Specified And As Directed. 18 Repair And Maintance Taking Down Old Unserviceable Xple Cable Any Type And Any Size All As Specified And As Directed By Engr-In-Charge. Total Quantity : 437
