ntroduction of Three-Phase Electronic Active Energy Meter
1 Overview
DTSY1877 three-phase active electronic energy meters are used in the active energy measurement of power supply departments, factories, enterprises, commerce, agriculture, and lighting equipment. The watch adopts imported special large-scale integrated circuit, 16-bit A/D conversion, digital multiplier, digital sampling processing technology and SMT process. A new type of electric energy meter designed and manufactured according to the actual power consumption of industrial users. It is used to measure AC three-phase active energy with a frequency of 50Hz, and the electricity is displayed by a meter, and the reading is intuitive and easy to read. This instrument can expand infrared and RS485 communication functions, and provide advanced and reliable measurement tools for three-phase electric energy measurement.
The metering module used in this meter can accurately measure the three-phase forward and reverse bidirectional active energy. The measurement is accurate, stable, reliable, with good anti-electromagnetic disturbance, low power consumption, high accuracy, anti-theft, wide range, long life and so on.
2. How it works
The electric energy meter adopts three-phase power supply mode, and can work normally under any single-phase power supply condition. When the electric energy meter is working, the voltage and current are sampled by the sampling circuit, and then sent to the large-scale application-specific integrated circuit for buffer amplification. Then it is converted into a digital signal by a 16-bit A/D converter. After the operation of the digital multiplier, it is converted into a pulse proportional to the electric energy, which drives the meter to accumulate electric energy and drive the pulse indicator light, and outputs the pulse for measurement.
