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... moreElectronic 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... less
