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• Characteristics Of Electronic Electric Energy Meter

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  Electronic meters display the energy used on LCD or LED displays, and some can also transmit readings to remote places. In addition to measuring the energy used, the electronic meter can also record other parameters of the load and power supply, such as instantaneous and maximum utilization requirements, voltage, power factor, and reactive power used. They can also support daily billing, for example, to record power consumed during peak and off-peak hours. The meter has a power supply, a metering engine, a processing and communication engine (ie a microcontroller), and other additional modules, such as real-time clock (RTC), liquid crystal display, infrared communication port/module and so on. Provides voltage and current inputs to the metering engine, and has a voltage reference, sampler and quantizer, followed by an analog-to-digital conversion part to generate the digital equivalent value of all inputs. Then use the digital signal processor to process these inputs to calculate various metering parameters. The biggest source of long-term error in the meter is the drift of the preamplifier, followed by the accuracy of the reference voltage. Both also vary with temperature, and vary greatly in outdoor meters. Characterizing and compensating these are the main parts of meter design. The processing and communication part is responsible for calculating various derived quantities based on the digital values ​​generated by the metering engine. It is also responsible for communicating using various protocols and interfacing with other additional modules connected to it as a slave device. RTC and other additional modules are connected to the processing and communication part as slave stations to realize various input/output functions. In modern instruments, most (if not all) functions will be implemented inside the microprocessor, such as RTC, LCD controller, temperature sensor, memory and analog-to-digital converter. Zhejiang Tepsung Electric Meter Co., Ltd . is a professional manufacturer and supplier of single phase energy meter and mechanical kWh meter . The measurement precision and accuracy of the meter strictly comply with national standards. The product specifications are complete. New energy, energy distribution, big data and energy value-added services are our core business. Welcome to check our product details: https://www.yhddb.com/product/electromechanical-kwh-meter/