Tenders Are Invited For Transformers – Tender For The Supply Of A Spare Transformer For Medite Europe Dac ‘25

Transformers – Tender For The Supply Of A Spare Transformer For Medite Europe Dac ‘25. Medite Europe Dac Requires A New Spare 2500Kva Transformer To Be Delivered To Its Site. Site Location: Medite, Redmondstown, Clonmel, Co. Tipperary. Please Note That The Successful Bidder Will Be Responsible For The Supply Of A 2500Kva Transformer That Would Meet All The Specifications And Conditions Mentioned In The Specification Table Subsequently. The Scope Includes: • Complete Transformer With All Specified Accessories And Fittings • Delivery To Site, Including Protective Packaging Suitable For Road Transport • Provision Of Drawings, Operation And Maintenance Manuals, And Test Certificates • Manufacturer’S Warranty 1. Specifications Schedule 1 - Transformer Specifications Sno Parameter Specification 1 Rated Power 2500 Kva 2 Hv Rating 10.75/21.5Kv 3 Lv Rating 423V 4 Phase 3 5 Frequency 50 Hz 6 Connections Delta/Star With Neutral 7 Vector Group Dyn 11 8 Tappings Off-Load Tap Changer (±5 Percent, In Five Steps: +5 Percent, +2.5 Percent,, 0 Percent,, −2.5 Percent,, −5 Percent,) 9 Tapping Method Externally Mounted Off-Circuit Operated Switch With Facilities To Lock In Any Operating Position 10 Hv Rated Current @ 10.75Kv ≈ 134 A 11 Hv Rated Current @ 21.5Kv ≈ 67 A 12 Lv Rated Current @423V ≈ 3412 A 13 Impedance Voltage 5.9 Percent, ± Iec Tolerance 14 Hv Short Circuit Current @ 10.75Kv ≈ 2271 A 15 Hv Short Circuit Current @ 21.5Kv ≈ 1138 A 16 Lv Short Circuit Current @ 423V ≈ 57834 A 17 Short Circuit Withstand 2 Seconds Minimum 18 Insulation Level Iec Standard For 11 Kv: Lightning Impulse 75 Kv, Power Frequency 28 Kv 19 Cooling Method Knan (K-Class Natural Ester Oil, Air Natural Cooling), Hemetically Sealed, Integral Radiator Type Tank 20 Insulating Fluid Biodegradable Natural Ester Oil Per Iec 61099 Or Equivalent, Nontoxic 21 Fire Point ≥300°C 22 Temperature Rise Oil: 65°C, Winding: 70°C Above Ambient 23 Location Outdoor Ground Mounted 24 Ambient Temperature 40°C 2. Construction Schedule 2 - Construction Sno Parameter Details 1 Core Cold Rolled Grain-Oriented Silicon Steel, Step-Lap Design For Low Losses 2 Windings High Conductivity Copper, Thermally Upgraded Insulation, Vacuum Dried And Impregnated 3 Tank Welded Steel Tank, Corrosion Protected With Primer And Polyurethane Finish To En Iso 12944 For Outdoor Use 4 Paint Finish E-Coated/Galvanised And Painted Ral 7033 5 Hv Termination 3 Pole Cable Box With Undrilled Gland Plate Suitable For Cable From Below/Above 6 Lv Termination 4 Pole Cable Box With Undrilled Gland Plate Suitable For Cable From Below/Above 7 Bushings Hv + Lv Bushings As Per Iec 60137, Porcelain Or Polymeric Type 8 Neutral Bushings Lv Neutral Bushing Brought Out For Earthing 3. Accessories And Fittings Schedule 3 - Accessories And Fittings Sno Details 1 4 Lifting Lugs To Be Provided 2 Skid Under Base With 4 Rollers 3 Nameplate Stainless Steel Engraved, With Ratings + With Diagram, As Per Iec Requirement 4 Earthing Terminals 5 Thermometer Pocket 6 Conservator Tank With Magnetic Oil Level Indicator And Breather (Silica Gel