DDSY881 series electronic formula type prepayment energy meter is
used in measuring participation ratio frequency 50Hz and
single-phase dc active-energy, Having the function of prepayment
management of buying first and using after the electricity
simultaneously, The products are suitable for improving the system
of using electricity in our country, Realizing the electric energy
to commercialize, Controlling and adjusting the load of electric
network.
To have all function of electronic type single-phase electric
energy meter ic card prepayment using electricity, To buy first and
use after using, Cutoff the power supply when using up.
The card of purchasing the electricity records the information of
using electricity automatically, And it is convenient to manage.
When two grades of capacity of electricity are consumed, It will
alarm and remind the user to purchase the electricity in time.
Single-phase and three-phase prepayment active-energy meter use one
management system of prepayment to sell the electricity.
One management system of prepayment to sell the electricity.
When the line of supplying is cut, The data could keep 20 years at
least.
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