The three phase electronic pre-paid watt-hour meter use the entire digitized, intellectualized energy measurement as a core, combines the monolithic intelligence processing technology the high performance metering. It has the digitized electrical energy measurement, the intellectualized charge control, against to steal the electricity management, the user information management completely and so on multi-purpose new generation products. This electrical energy table is the current reform uses electricity the system, realizes the electrical energy commercialization, the solution receives makes an effort and adjusts the electrical network load conditions the ideal product. The product may install in indoor or the outdoor electric instrument box. Adapt in the ambient temperature for -20~+55º C, the relative humidity is not bigger than under 85% conditions to use. This product each performance conforms to GB/T 18460.3-2001 Prepay to consume electricty completely can table in the standard stipulation.

Main Function and Characteristic
1. The standard IC card hardware encrypts the pre-charge, the power supply department sells buys the electricity card (IC card) the way sale electric quantity advance receipt electrical bill, after the user buys first, uses.
2. The collection digitization measurement, the electric quantity demonstrated completely, the pre-payment control, reads the card, the intelligence against steals the electricity and son many kinds of functions to merge into one organic whole, has the extremely high reliability.
3. Overloading protection, the load surpasses hypothesis maximum current 20-30% continual period of time, the cut-off power supply return route. Electrical energy table automatic time delay period of time will switch on automatically.
4. Demonstrates the dump energy, the demonstration figure is five(four integers, a decimal).

5. The dump energy achieves the pre-warning electric quantity, the nixie tube twinkle demonstration dump energy, prompts the user to input newly buys the electric quantity, . 8, . Whenin the electrical energy table the dump energy is a zero hour, the electrical energy table trips automatically, the interrupt power supply, this time, the user must hold buys the electricity card to sell the electrical department gate to buy the electricity(power supply department to establish may have overdraws electric quantity, after insertion buys electricity card, user may use certain limiting value electrical energy), after having the effective electric quantity to buy in the electricity card insertion table, only then normally supplies power.

6. When surplus electric consumption is zero in the electric energy meter, the electric energy meter trips automatically, cut off the power supply, at this moment, user must hold, purchase electric card get sale of electricity department purchase electricity(supply power department set up, can have electric consumption of overdrawing, users can use the electric energy of certain limit after inserting and purchasing the electric card), With effective electric consumption to purchase electric card insert, after the form, can supply power normally.

7. It is sure to be worth cutting out automatically that the electric consumption owed reaches, nput new purchasing electric consumption(duduct the electric consumption overdrawed)And then resume supplying power automatically.
8. While losing electrical power, keep the data automatically, resume the data automatically after the incoming telegram.
9. Computer+ special-purpose IC card person who read and write charge management software commit the administrative system of sale electricty.