Three Phase Electric Prepayment meter

La description

II. Main functions a. Accurate measurement: be able to accurately measure forward and reverse bidirectional active energy, when occurred reverse energy, it will accumulate as forward energy. b. Prepayment: customers can buy electricity through IC card and consume the electricity, which eliminates the phenomenon of arrear and is favorable to debt-collecton. It is with function of energy to be superimposed and recorded, and deduction of “energy below zero” c. IC card function: be able to preplace electricity amount, set maximum load and alarming electricity amount, and limited amount of maximum purchase electricity, use the IC car to deliver the data information, realize data’s read back and maximum save cost of management. d. Alarm power cut: when remained available electricity amount is less pre-set alarm value, LCD will display remained electricity amount and alarm light flashes to remind customer to purchase. When remained electricity is less tha pre-disconnected electricity amount, meter can cut off electricity automatically, only after customer recharges to meter, it can be connected again. e. Credit function: when remained electricity amount is zero, the meter can cut off electricity automatically, at that time customer can insert IC card to connect; But, after the credit electricity amount is completed, the meter will cut off electricity again, only when customer purchases again, the meter will connect. f. Load-control: Power supply bureau can set limited load through management software, when customer inserts IC card to deliver the electricity amount to meter, limited load control value can be delivered to meter too. When total load is over limited load’s *5%~*0% and keeps for T second, meter will disconnect automatically. LCD displays the current load value to remind customer to reduce the load. After meter disconnected for T second, meter wil automatically reconnect and also customer can insert IC card to recover power supply. g. Phase failure indi