Air circuit breaker Active energy meter

Electrical energy can be converted into a variety of energy. Such as: electric furnace is converted into thermal energy, by the motor into mechanical energy, is converted into light power transformers‍ by the lamp and the like. In these transformations in energy consumption for active energy. The record of this energy meter for active energy meter.

Reactive power meter

Electrical theory tells us that some electrical equipment for energy conversion when served to establish a transition environment, such as: motors, transformers, etc. must first establish a magnetic field in order to make energy conversion, and some electrical device is first made to establish an electric field energy conversion. The establishment of magnetic and electric power are required reactive energy. The record of this power meter for reactive energy meter. Reactive energy in the electrical device itself is not consume energy, but will produce reactive current in the electrical circuit, Air circuit breaker‍ the current will produce a certain loss in the line. Reactive power meter is specifically record this loss, usually only the larger power unit before the installation of such meters.

CNC Electric According to the principle of division

1. Meter and electronic sensors into two categories:

Principle of induction meter uses electromagnetic induction to the voltage, current, phase change magnetic moment, pushing aluminum disc rotation axis of the disc (worm) current transformer‍ drive gear drive counters and the drum rotates, the rotation of the process that is the amount of time cumulative process. Therefore, the benefits of induction meter is intuitive, dynamic continuous power does not lose data.

Induction meter high requirements on the process, involving a wide range of material, metal, plastics, precious stones, glass, rare earth and so on, to which the relevant material standard products and requirements are clearly defined, with cheap inferior materials instead of the standard specifications of materials is one of the main problems that affect product quality meter, so like most commodities, low commodity prices will not have a good quality assurance.

Complex production process induction meter, but already mature and stable, but also comprehensive support tooling equipment. Production requirements temperature, humidity and air purification degrees higher.

Electronic energy meter using analog or digital circuits to get the product of voltage and current vector, and then implement the energy measurement functions with analog or lectri calmete‍ digital circuits. Since the application of digital technology, sharing billing meter, prepaid energy meter, multi-user power meter, multifunction power meter have appeared, and further meet the science of electricity and reasonable demand for electricity.

Currently Overall, induction meter, compared with the electronic energy meter, induction meter quantity produced as much. But production of electronic power meters have a clear upward trend.

2. Press the accuracy of measuring the power of classification, there is a general and two tables: one represents meter error does not exceed ± 1%; 2 represents meter error does not exceed ± 2%

3. Press the additional function division, multiple rate meter, prepaid energy meter, energy meter multi-user, multi-function meter, power meter and other carriers. Multi-rate meter or meter, said sharing, multi-rate table, commonly known as peak table, is a measurement instruments in recent years to meet the needs of TOU tariff provided. It can be pre-peak, valley, usually divided into segments, each metering peak, trough, flat section of electricity, and thus different time with different electricity tariffs, tariff regulation play, encourage electricity customers adjust electricity load, peak load shifting, rational use of power resources to fully tap, supply, potential electrical equipment, is an electronic or electromechanical meter; commonly known as prepayment meter card table, with IC card pre-order power, the IC card is inserted in the table can be controlled by the cost of electricity to prevent electricity arrears, is electronic or electromechanical meter; power transformers‍ multi-user meter a watch for multiple users, independent accounting of each user, so you can reach the purpose of saving resources and easy to manage, but also conducive to the centralized remote automatic meter reading, is the electronic energy meter; multifunction meter set a number of functions in one, is the electronic energy meter; carrier Meter use power line carrier technology for centralized remote automatic meter reading, is the electronic energy meter.

mcb circuit breaker Meter, ic card meter, and other related products.

‍

  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.