Main function:
Single-phase electronic type IC card watt-hour meter can supply electric power only after being prepaid by users, one card for one user and one meter, and not interchangeable. When the electric power in the card is used up, the power will be cut off automatically, thus effectively avoid inconvenience of fee charging.
Meanwhile, the computer controls the power purchase information of users, which is convenient for checking, summing up, fee charging and bills printing, etc. The[...]