procurement of lt ct operated smart energy meters with cellular based technology , isi marked, 3-phase, 4-wire, ct(s) operated lt statics trivector smart meters (dlms compliant) of accuracy class 0.5s of c.t. rating 1000/ 5 amp. (category-c) with cellular based communication technology and lt ct meter box , isi marked, 3-phase, 4-wire, ct(s) operated lt statics trivector smart meters (dlms compliant) of accuracy class 0.5s of c.t. rating 1600/ 5 amp. (category-c) with cellular based communication technology and lt ct meter box , copper wound combined ct-pt unitsfor metering purpose, o/d installations, oil immersedhermeticallysealed havingaccuracy class 0.5s consisting of3 current transformers for r/y/b phases along with 1 no. 3-phase star/star potential transformer conforming to relevant iss/ iec specifications of voltage ratio 22kv/110 v and current ratio of 25/5a, 50/5a, 100/5a, 200/5a & 300/5a. , copper wound combined ct-pt unitsfor metering purpose, o/d installations, oil immersedhermeticallysealed havingaccuracy class 0.5s consisting of3 current transformers for r/y/b phases along with 1 no. 3-phase star/star potential transformer conforming to relevant iss/ iec specifications of voltage ratio 33kv/110 v and current ratio of 25/1a, 50/5a, 75/5a, 100/5a, 200/5a & 300/1a