purchase of 220 kv and 132kv feeder , transformer and bus coupler candr panels under bn 9016002013 , 220 kv feeder control & relay panels ( type-a2 ) , numerical communicable distance protection relay with application software for main-i , numerical communicable distance protection relay with application software for main-ii , 220 kv transformer control & relay panels ( type-b2 ) , numerical communicable differential relay with application software . , numerical over flux relay , numerical communicable combined idmt non-directional over current relay with high set element and directional earth fault relay with directional high set element with voltage polarisation & wide range of maximum torque angle ( having three elements of over current and one element of earth fault ) with application software , restricted earth fault relay complete with resistor and surge diverter , 132 kv transformer control & relay panels ( type-k2 ) , 132 kv feeder control & relay panels ( type-j2 ) , numerical communicable distance protection relay with application software , numerical communicable combined idmt directional over current and directional earth fault relay with voltage polarisation & wide range of maximum torque angle ( having three element of o / c and one element of e / f ) with application software , 132 kv bus coupler control & relay panels ( type-l2 )