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Control smart electricity meters enable two-way communication between the meter and the central system.
Three-phase local charge controlled smart electric energy meter is mainly used in power station, large users, distribution transformer...
Older types of electric energy meters are mechanical and use a system of gears and wheels to record electricity consumption.
an electric energy meter must measure both the voltage and the amperage of the circuit wiring at all times.
There are many electric energy meters in our daily life, such as single-phase meter and three-phase meter.