Tender For supply of supply, installation & commissioning of item as per annexure enclosed-supply. installation & commissioning of ac three phase ht ctpt multifunction dlms compliant energy meter of accuracy class 0.5s, 3 x 63.5v, 50hz with optical & rs232 or rs485 port, backlit lcd display. (measures kwh, kvarh lag & lead, kvah, md kw & kva, instantaneous parameters like v,i,pf, frequency etc., 6 months history of energy & md, load survey, tod, tamper detection & logging, power on/off events of bating/54 ??