The rapid development of my country's economy has driven the overall level of development of all industries, no matter which industry is indispensable for electricity demand, so it is urgent to make a good calculation and accurate record of electricity consumption. The single phase energy meter would be a good choice.

The single phase energy meter obtains the voltage sampling signal from the voltage divider, the current transformer obtains the current sampling signal, obtains the voltage and current product signal through the multiplier, and then generates an electric energy measurement pulse whose frequency is proportional to the voltage and current product through frequency conversion. The power pulse signal is sent to the processing by the photocoupler, and stored in the non-volatile memory after calculation, and provides a display.

The wiring of the watt-hour meter is still more complicated. Before wiring, the voltage terminal and current terminal of the watt-hour meter must be distinguished and then connected according to the technical manual. So you still need to be careful when wiring and the same is true when wiring a mechanical kWh meter .