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Supply Of Outdoor Type, Plinth Mounted, Distribution Transformer, Minimum Energy Efficiency Level 3 Of Rating 250 Kva, 3-phase, 11kv/415-240v, 50hz, Oil Immersed, Non Sealed Type Transformer Tank Body And Cover Are Bolted, Copper Wound, Primary Winding In Delta And Secondary Winding In Star Vector Symbol- Dyn11, Onan Cooled Transformer, Conforming To Is 1180 Part1:2014 With Amendment Nos. 1, 2, 3, 4 Or Latest, And Supplied With All Standard Fittings Mentioned In Clause 20.1 Of Is 1180 Part 1 Latest With Condition That Drain-cum-sampling Valve. Oil Temperature Indicator & Winding Temperature Indicators Will Be Provided As Per Clause 20.2 F Of Is 1180 Part 1. Terminal Arrangement: The Transformers Shall Be Fitted On High Voltage And Low Voltage Sides Bushing Appropriate Voltage And Current Ratings., Low Voltage Side Cable End Box Required . The High Voltage Bushings 3 Nos. Shall Conform To Is/ Iec 60137. The Low Voltage Bushings 4 Nos. Shall Conform To Is 7421. Off-circuit Tap Changer Applicable For All Ratings Above 200 Kva For Variation Of Hv Voltage From +5% To -10% In Steps Of 2.5%. Following Has To Be Submitted By Supplier Along With Supply Of Material: I Type Test Report Of Transformer Having Same Rating, Make & Model If Any And Design From Nabl Accredited Lab As Per Is: 1180 Part 1 Latest. Ii Routine Test Certificates As Per Is: 1180 Part 1 Latest. Iii Special Test Certificates As Per Clause 21.4 Sl. No. A, C, D & E Of Is:1180 Part 1 Latest..
