... voltage system, PMAC770 need to connect with PTs, PT ratio programmable ØNew appearance and design Large LCD display and button, replace ... , kWh, kvarh, demand, max./min. value, ØDemand calculation mode is programmable 2 kinds of demand modes: fixed block and rolling block ... rate, each list can setup 8 periods of time in 24 hours, 4 tariff rates. ØPower quality analysisHarmonic analysis, crest and K ...