DC Electricity Meter
Today's main character is the DC Meter, which is used sparingly in homes (because homes use mostly alternating current) but is indispensable in some areas.
DC electricity meters are widely used in solar power supply, PV （photovoltaicenergy） storage system, DC screen, DC charging pile, communication base station, urban rail transportation and other occasions.It can measure the voltage, current, power, forward and reverse electric energy in the DC system. It can not only be used for local display, but also can be connected with industrial control equipment and computer to form a measurement and control system.The main communication modes of these DC meters are RS-485 communication and NB-IOT wireless communication, using DLT645 or MODBUS-RTU protocol.
The model of the first-generation DC metering device developed and manufactured by IVY is EM613001, which has good reliability of the DC electricity meter and high sampling accuracy via shunt sampling. In addition, the meter is small in size, beautiful in appearance, and installed by Din Rail ——more convenient, and supports RS485 communication. Its counterpart is the more powerful second-generation DC electricity meter EM613002, which can support both RS485 and NB-IOT communication, can read data remotely, and can be used as concentrator. At this time, EM613002 can connect up to 25 DC electricity meters, and EM613001 can communicate with concentrator (EM613002) through RS485 to upload data to the system platform. If you only need to do simple data reading, you can use the supporting upper computer software.
Finally, in the process of modernization, smart electricity meter is the basic equipment for data acquisition of smart power grid (especially smart distribution grid). It undertakes the tasks of data acquisition, measurement and transmission of original electric power, and is the basis for information integration, analysis and optimization and information presentation.In addition to the measuring function of basic electricity consumption of traditional electricity meters, smart electricity meters also have the functions of two-way metering of various rates, user control function, two-way data communication function of various data transmission modes, anti-power theft function and other intelligent functions to adapt to the use of smart power grids and new energy.
