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Tender for Award Of Central Rate Contract For Repair And Testing Of Damaged 33/11 Kv Power Transformer , 1.0) Opening Of Transformer Cover, Draining Oil, De-Tanking Core Coil Assembly, Assessment And Estimation For Repair And Replacement Of Part,Providing Locking Arrangement On All Valves & Plugs As Per Requirement Of Specification,Cleaning & Washing Of Dust/ Rust & Dirt From All Other Parts Including Core Tanks & Cooling Tubes, Re-Tank , Variable With Base Date 01.03.2026 , 1.1) For 3.15 Mva Rating , 1.2) For 5.0 Mva Rating , 1.3) For 8.0 Mva Rating , 2.0) Supply Of Following Damaged Parts Requiring Replacement Complete In All Respect, Variable With Base Date 01.03.2026 , 2.1) Hv Leg Coil With Insulation, Varnish & Baking Of Coil Assembly (Vacuum Impregnation)(The Burn Leg Is To Be Retained By Contractor) , 2.2) Lv Leg Coil With Insulation, Varnish & Baking Of Coil Assembly (Vacuum Impregnation)(The Burn Leg Is To Be Retained By Contractor) , 3) Ht Bushing (33 Kv) As Per Relevant Iss. , 4) Lt Bushing (11 Kv) & Neutral Bushing As Per Relevant Iss. , 5) Bushing Rod & Other Metal Parts Including Nuts ( Material & Size Of Bushing/ Rods/Nuts As Per Is Specidfication) , 5.1) For Hv , 5.2) For Lv , 6.0) Set Of Gaskets (Rubberized Cork Neoprene Material & Size Is To Be Needed) , 6.1) For 3.15 Mva Rating , 6.2) For 5.0 Mva Rating , 6.3) For 8.0 Mva Rating , 7.0) Breather Dehydrator (Silicagel Type With Fresh Silicagel) , 7.1) For 3.15 Mva Rating , 7.2) For 5.0 Mva Rating , 7.3) For 8.0 Mva Rating , 8.0) Glass For Oil Level Gauge , 9) Taping Switch Handel Only , 9.1) For 3.15 Mva Rating , 9.2) For 5.0 Mva Rating , 9.3) For 8.0 Mva Rating , 10) Off Loading Taping Switch Without Handle , 10.1) For 3.15 Mva Rating , 10.2) For 5.0 Mva Rating , 10.3) For 8.0 Mva Rating , 11) Oil Drain/ Filter Valve Of Gun Metal , 12) Lt Terminal Plate With Terminals If Required , 13) Fresh Transformer Oil Of Standard Quality Of Isi Mark, Variable With Base Date 01.03.2026 , 14) Filtration Charges If Transformer Oil Supplied By The Nigam / Repairer Of The Transformer , 15) Sundry Items Viz Cover Bolts, Plug Cap Screws, Washers, Insulation Material Etc. With Minor Repairs Of Tank And Other Parts If Any (Denting And Welding Etc. If Required) , 15.1) For 3.15 Mva Rating , 15.2) For 5.0 Mva Rating , 15.3) For 8.0 Mva Rating , 16) Cooling Tubes/ Fins , 17) Conservative Tank With Detachable End Plates. , 18) Dial Type Thermometer 100 Mm Size , 19) Dial Type Thermometer 150 Mm Size With A Set Of Alarm Contact For 3.15 Mva And Above Transformer Rating. , 20) Double Float Buchholz Relay , 21) Rating Plate Made Of Stainless Steel Or Brass Or Alumunium Engraved With Details As Per Specification Including Date Of Despatch Of Transformer After Repair , 22) Earthing Terminals , 23) Air Release Valve , 24) Arcing Horns For Ht Bushing And Lt Bushing Non Adjustable Type , 25) Winding Temperature Indicator With Alarm , 26) Plain Capaliary Type Oil Level Guage To Be Provided On The Oil Conservator With Low Level Indicator , 27) Magnetic Type Oil Level Gauge , 28) Marshalling Box For Transformers , 29) Shut Off Valve (Gun Metal ) 1 1/2 , 30) Painting Inside With Two Coat Of Zinc Chromate Best Paint And Outside Of Transformer With Two Coat Of Grey Paint And Marking After Derusting , 30.1) For 3.15 Mva Rating , 30.2) For 5.0 Mva Rating , 30.3) For 8.0 Mva Rating , 31) To And Fro Transportation Charges From Any Of The Circle Store / Sub Store To The Work Of The Firm And Back , 31) A)Loading & Unloading Charges At Firms Works And Nigams Stores (Both Sides). , 31.A.1) For 3.15 Mva Rating , 31.A.2) For 5.0 Mva Rating , 31.A.3) For 8.0 Mva Rating , 31. B) Transportation Charges Per Km. , 31.B.1) For 3.15 Mva Rating , 31.B.2) For 5.0 Mva Rating , 31.B.3) For 8.0 Mva Rating , 32) Charges For Minor Repair Where Replacement Of Coil Is Not Involved , 32.1) For 3.15 Mva Rating , 32.2) For 5.0 Mva Rating , 32.3) For 8.0 Mva Rating , 33) Labour Charges For Opening The Transformer Tank Top Cover(If Required To Facilitate Maintenance Of Transformer) After Removing Required Accessories.Including All Required T&P Up To 5 Mva Transformer. , 34) Preventing Oil Leakage By Changing Main Gasket With Material After Removing Cover. , 34.1) Upto 1.6 Mva Transformer , 34.2) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 34.3) Above 3.15 Mva & Upto 5 Mva Transformer. , 35) A) Change Of Hv/Lv Bushing Gasket Ring And Rubber Washers Including Supply Of Required Material & Draining /Re-Filling Of Oil As Required. , 35) B) For Additional Hv/Lv Bushing Work. * This Amount Will Not Be Payable Incase The Work Of Removing Of Top Cover Gasket Is Also Awarded In The Same Order. , 36) Change Of Gaskets Of Valves/Radiator / Buchhlozes Relay Including Cost Of Gaskets Etc. , 36.1) Valves/Buchhlozes Relay , 36.2) Radiator Valves. , 37) Providing & Fixing (Including Replacement) Of Hv/Lv Bushing Of Reputed Make & Bushing Rod Of Brass Matel Including Cost Of Gasket & Rubber Rings .Gasket Makes Are Tabross,Tiger, Zebra And Any Other Reputed Make. , 37.A) Hv Side , 37.A.1) Upto 1.6 Mva Transformer , 37.A.2) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 37.A.3) Above 3.15 Mva & Upto 5 Mva Transformer. , 37.B) Lv Side , 37.B.1) Upto 1.6 Mva Transformer , 37.B.2) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 37.B.3) Above 3.15 Mva & Upto 5 Mva Transformer. , 38) Dehydration/Filteration And Reconditioning Of Transformer Oil (Electricity Shall Be Supplied By Deptt.) As Per Norms And Testing Thereof In Presence Of Sub-Station Incharge. , 39) Cleaning Of Oil Scale Deposits Over The Body And Radiators Of Power Transformer With Thinner/Detergent And De-Rusting In Perfect Manner. , 39.1) Upto 1.6 Mva Transformer , 39.2) Above 1.6 Mva & Upto 3.15 Mva Transformer. , 39.3) Above 3.15 Mva & Upto 5 Mva Transformer. , 40) Change Of Following Items: , A) Oil Temperature Indicator , B) Windingtemperature Indicator , C) Silica Gel Container , D) Presser Relief Device Make Atbus , E) Magnetic Oil Level Gauge.Make Atbus , F) Gas Operated Buchhloz Relay( Double Floating Type Make Atbus)
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