Introduction of single-phase prepaid electricity meter

Introduction of single-phase prepaid electricity meter

Prepaid electricity meter is also called quantitative electricity meter and IC card electricity meter. In particular, the user buys electricity first, and can only use it after buying electricity. If the user does not continue to sell electricity after running out of electricity, the power supply will be automatically cut off to stop supplying electricity.

Common pre-storage methods for card-in prepaid meters

There are two pre-storage methods, one is code type and the other is card writing type.

The principle of the code type is: the management system combines user information and electricity purchase information to generate a set of encrypted codes, which are then handed over to the user to input into the electricity meter. save.

Card writing type: Write the pre-purchased electricity or amount into a special electronic card (memory), and hand it over to the user to hold the electronic card to communicate with the corresponding electric meter, and the pre-purchased value is automatically sent to the electric meter.

Electronic cards or IC cards, also known as electricity purchase cards, are made of special IC chips after special packaging. Common electricity purchase cards are divided into contact and non-contact types according to communication methods.

Contact include: card card, key card, non-contact include: radio frequency card, remote control card.