Bids Are Invited For Supply, Fixing, Connection, Testing And Commissioning Of Power Distribution Transformer, 3Phase, 11 Kv / 415 V, Capacity- 500 Kva, Isi Marked-Yes, Energy Efficiency Level-5, Bee Star Rating-5, Nominal System Voltage Hv ( In Kva ) -11, Nominal System Voltage Lv ( In V ) -415, Rated Frequency-50 Hz + / -5%, Minimum Basic Insulation Level ( Kvp ) -75, No Load Voltage Ratios ( In Volts ) - 11000 / 433-250, Highest System Voltage For Equipment ( In Kv ) -12, Core Material-Crgo ( As Per Is: 3024, Latest ) , Conductor ( Winding ) Material-Copper, Material Of Transformer Tank- Mild Steel, Vector Group-Dyn-11, Type Of Cooling- Onan, Cable End Box In Hv Side- Yes, Cable End Box In Lv Side- Yes, Oil Temperature Indicator And Winding Temperature Indicator , Buchholz Relay- Yes, Protection Relays For Sealed Type Transformers For Internal Parameters That Is Pressure, Temperature, Oil Level And Gas Detection-Yes, Standard Fittings Shall Be Provided With Each Distribution Transformer-As Per Ci.20.1 Of Is: 1180 ( Part 1 ) : 2014 Amdt. 1, Type Of Mountingground Mounted, Minimum Warranty From The Date Of Installation-24 Months, Minimum Warranty On Receipt Of Stores-30 Months, Make - Servokon, Servostar, Euro Power, Airen Power, Bala Industries Or Similar.