Working principle of intelligent electricity meter
Now smart meters are not only simple metering, but also transmit multiple data, as well as the function of electricity theft prevention. 

Smart meters are safer than mechanical meters before. Now we can even analyze our electricity usage habits. So what is the 

working principle of smart meters to the end? Now we will explain it separately in single-phase smart meters and three-phase 

smart meters.

Brief introduction to the working principle of single-phase intelligent electricity meter This product consists of metering chip, 

high-speed data processor, real-time clock, data interface and other equipment. Under the control of the high-speed data 

processor, the real-time parameters of the power grid operation are accurately obtained through the metering chip, and the 

data are processed according to the requirements of the corresponding rates. The results are stored in the data memory, and 

the external interface is provided with information and data exchange at any time.

When the watt hour meter is working, the voltage and current are sampled respectively by the sampling circuit, sent to the amplifier 

circuit for buffering and amplification, and then converted into digital signals by the metering chip. The high-performance microcontroller 

is responsible for analyzing and processing the data. Because of the high precision measurement chip, the measurement chip 

completes high-speed sampling of the front end by itself, and the measurement algorithm is stable, the microcontroller only needs to 

manage and control the working state of the measurement chip. The microcontroller in the figure is also used for time-sharing billing 

and processing various input and output data, and completes time-sharing active and reactive energy metering and maximum demand 

metering functions according to the preset time period. It can display various data as required, communicate and transmit through 

infrared or 485 interfaces, monitor operating parameters, and record and store various data.

Working principle of intelligent electricity meter
Now smart meters are not only simple metering, but also transmit multiple data, as well as the function of electricity theft prevention. 

Smart meters are safer than mechanical meters before. Now we can even analyze our electricity usage habits. So what is the working 

principle of smart meters to the end? Now we will explain it separately in single-phase smart meters and three-phase smart meters.
Brief introduction to the working principle of single-phase intelligent electricity meter This product consists of metering chip, high-speed 

data processor, real-time clock, data interface and other equipment. Under the control of the high-speed data processor, the real-time 

parameters of the power grid operation are accurately obtained through the metering chip, and the data are processed according to the 

requirements of the corresponding rates. The results are stored in the data memory, and the external interface is provided with 

information and data exchange at any time.

When the watt hour meter is working, the voltage and current are sampled respectively by the sampling circuit, sent to the amplifier 

circuit for buffering and amplification, and then converted into digital signals by the metering chip. The high-performance 

microcontroller is responsible for analyzing and processing the data. Because of the high precision measurement chip, the 

measurement chip completes high-speed sampling of the front end by itself, and the measurement algorithm is stable, the 

microcontroller only needs to manage and control the working state of the measurement chip. The microcontroller in the figure 

is also used for time-sharing billing and processing various input and output data, and completes time-sharing active and reactive 

energy metering and maximum demand metering functions according to the preset time period. It can display various data as required, 

communicate and transmit through infrared or 485 interfaces, monitor operating parameters, and record and store various data.