Supply Of Outdoor Type Distribution Transformer Of Rating 500 Kva 11 Kv/415 Volt-240 Volt, 3- Phase, 50 Hz, 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 C Onfirming To Is: 1180(Part-1):2014 With Amendments No. 1,2,3,4 Or Latest And Supplied With All Standard Fitt Ings Mentioned In Clause20.1 Of Os: 1180 (Part-1) Latest With Condition That Drain-Cum Sampling Valve Will B E Applicable For All Capacity Of Transformers. Oil Temperature Indicator & Winding Temperature Indicators Will Be Provided As Per Clause 20.2 Of : 1180 Part-1). The Transformer Shall Be Fitted On High Voltage And Lo W Voltage Sides With Outdoor Type Bushings Of Appropriate Voltage And Current Ratings. The High Voltage Bu Shings (3 Nos.) Shall Confirm To Is/Iec 60137. The Low Voltage Bushings (4 Nos.) Shall Confirm To Is 7421. Sui Table Cable End Box Along With Cable Entry Hole Glands To Be Provided Ht Side & Lt Side. Type Of Tap Chang Er: On Load Tap Changer For Variation Of Hv Voltage From +5% To -15% In Step Of 2.5%. Energy Efficiency Lev El: 3 Or Above. Make- Kirloskar/ Mei/Agrosons/Abb/Servokon Or Equivalent. [ Warranty Period: 30 Mo Nths After The Date Of Delivery ] ]