Outdoor Oil Immersed Current Transformer Sys. Voltage 33Kv, Ilv: 36 / 70 / 170Kv, 50Hz, 150 / 111A, Core 1: 15Va / 0.5, Core 2: 15Va / 5P20, Core 3: 5 Va Class X / Px / Ps, Kpv>=136.6V, Rct<=4 Ohms, Str: 25Ka / 3 Sec, As Per Iec 618691, 2, With Class A Insulation, As Per Drawing No. 4482, Type Ref. Cw710x The Ct Should Be Supplied With Cupling Pads And Necessary Nuts, Bolts And Washers Of Bimetallic Grade. The Dimentions Should Be Same / Less Then The Drawing Enclosed.Make : Kappa, Kalpa Indoor Current Transformer Indoor Resin Cast, Wound Primary, Sys. Voltage 3.3Kv, Ilv: 3.6 / 10 / 40Kv, 50Hz, 750 / 111A, Core 1: 10Va / 0.5, Core 2: 15Va / 5P20, Core 3: 7.5 Va Class X / Px / Ps, Kpv>=176.6V, Str:25Ka / 3 Sec, As Per Iec 618691, 2, With Class B Insulation, With Sealing Cover. As Per Drawing No. 4274. The Ct Should Be Supplied With All Necessary Nuts, Bolts And Washers Of Bimetallic Grade. The Dimentions Should Be Similar To The Drawing Enclosed. Make : Kappa, Kalpa , Schneider, Siemens Numerical Transformer Differential Protection Relay ( Microprocessor Based ) Suitable For The Transformer Of Rating 3 Mva, 33 / 3.3 Kv, 50 Hz Protection Of Primary And Secondary Windings Against Any Two Phase Internal Fault, Inter Turn Fault And Ground Faults, Over Current Protection Both For Phase Fault And Earth Faults Separately For Each Transformer Winding On Primary And Secondary. Ct Ratio And Vctor Group Must Be Programmable. Monitoring Trip Circuit Supervision, Fault Record & Event Record With Date And Time, Having Digital Display.Communication : Usb For Local And Rs 485 For Remote. Supporting Modbus Rtu, Iec 103 & 101, Iec 61850 . Complete Details As Per Nit ( Annexure I ) Numerical Feederprotection Relay ( Microprocessor Based ) Programmable To Set Three Phase Over Current And Earth Fault Protection, Drawout Type With, Self Ct Shorting, Protection Aganest Negative Phase Sequence, Monitoring Trip Circuit Supervision, Fault Record & Event Record With Date And Time, Having Digital Display
