Technical Analysis
The current main program power industry electrical measuring instruments are generally based on semiconductor technology for accurate measurement purposes. Meter generally uses a high-precision A / D converter, the voltage and current signals grid sampling and analog-digital conversion, and Power Supply high-speed digital signal microprocessor for analyzing, processing and data re-processing, sorting, resulting in a variety of measurement data; and finally using a variety of communication interfaces, human-machine interface with a variety of devices to achieve docking.
Meter is a sampling technology, micro-processing technology, design technology and experience combined with the product, is an interdisciplinary high-tech products. Meter manufacturers according to their own understanding and application of design techniques to achieve the function meter. The power meter products, now has a multi-function, networked, intelligent, digital needs, to meet the current requirements of all kinds of measurement, such as measurement of active and reactive power metering, demand computing, grid quality testing, grid event record and other complex functions, and can be used as communication and control from the master data exchange with the central station.
Currently, information collection system product technology is constantly evolving and upgrading process, product requirements and product functionality continuously optimized, mcb circuit breaker increasing to meet the growing information management requirements. Technically mature product combines the current energy metering function, electromagnetic measurement technology, DSP data processing technology, industrial automation technology, wireless remote technology, low-voltage power line carrier communication technology, embedded real-time operating system software platform technologies; interdisciplinary high-tech systemic products are new products,
Meter industry is already mainstream products in the international stage of rapid development, is a sunrise industry, including the world's developed economies and developing countries during the replacement meter to adapt to changes in the current world situation. First, the global energy conservation requirements, the need for accurate measurement of energy, promote the consumption of electricity control subject were based on the change in energy, electricity consumption habits change; the second is to adapt to the power of modern management, information Cncelegroup technology requirements, through smart meter as a node in the grid, you can quickly and efficiently in real-time to understand the situation of electricity power users, substations and other metrology measurement points, provide more accurate service and management.
Meter products in greatest demand are residents of single-phase energy meter, but with each year due to increased electricity consumption, electricity load increases residents, related electrical equipment requires the use of a three-phase power supply. While taking advantage of the three-phase power supply can improve load balancing rates and reduce electricity line losses. At present, most countries have adopted a three-phase residential electricity supply, the scope of application of the three-phase electronic energy meter has gradually expanded from the main field of industrial electricity to the residents of electricity. Therefore, the demand of three-phase power meter measurement will be increasing, accounting in the demand structure in the meter will be increased gradually.
To promote the smart grid construction, smart meter and information collection system will be an important part of the smart grid construction, electricity users to achieve "full coverage, full current transformer collection, full fee control", will facilitate information collection system improve product technology.
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