Induction type energy meter adopts the principle of electromagnetic induction to convert voltage, current and phase into magnetic torque, promote the rotation of the aluminum disc, the shaft of the disc (worm) drives the gear to drive the drum wheel of the meter to rotate, the rotation process is the process of time accumulation. Therefore, the advantages of induction energy meters are intuitive, dynamic and continuous, and power failure does not lose data.

Induction meters have high process requirements, materials involved in a wide range of metals, plastics, gems, glass, rare earth, etc., in this regard, the relevant material standards of the product have clear provisions and requirements, with low-cost inferior materials instead of standard specifications of the material is one of the main problems affecting the quality of the energy meter products, so like most commodities, Goods priced too low will not have good quality assurance.

The production process of induction energy meters is complex, but it has long been mature and stable, and the tooling is also fully supported. The production environment has high requirements for temperature, humidity and air purification. In the past ten years in Hangzhou, Ningbo, Wenzhou and other places to develop the formation of the energy meter materials and parts market has a considerable scale, the formation of a distinct Chinese intensive large-scale production characteristics, which is where the production of energy meters in the market has a price advantage one of the main factors.

The electronic watt-hour meter uses analog or digital circuit to get the product of voltage and current vector, and then realizes the power metering function through analog or digital circuit. Due to the application of digital technology, time-sharing charging energy meters, prepaid energy meters, multi-user energy meters, and multifunctional energy meters have appeared, further meeting the needs of scientific and reasonable electricity consumption.

The output of electronic energy meters in Jiangsu, Zhejiang and Shenzhen is higher, which is consistent with the concentration of electronic products in this area, and it is precisely because of the superior market conditions for materials and parts, forming price competitiveness. Three-phase multi-rate energy meter (sample) At present, in general, inductive energy meters are produced in larger quantities than electronic energy meters. However, the output of electronic watt-hour meters has a significant upward trend.

2. According to the accuracy level of measuring electrical energy, there are generally 1 and 2 level meters :1 level indicates that the error of the energy meter does not exceed ±1%; Level 2 indicates that the meter has an error of not more than ±2%.

3. Divided by additional functions, there are multi-rate watt-hour meters, prepaid watt-hour meters, multi-user watt-hour meters, multi-function watt-hour meters, carrier watt-hour meters, etc. Multi-rate watt-hour meter, or time-sharing watt-hour meter, multi-rate meter, commonly known as peak-valley meter, is a measurement means to meet the needs of peak-valley time-sharing price in recent years. It can be divided according to the predetermined peak, valley and normal section, respectively measuring the peak, trough and flat section of electricity consumption, so as to use different electricity prices for different periods of time, play the regulating role of electricity prices, encourage power customers to adjust the power load, shift the peak and fill the valley, rational use of power resources, and fully tap the potential of power generation, supply and electrical equipment, electronic or electromechanical energy meters; Pre-paid energy meter commonly known as card meter, pre-purchase electricity with IC card, IC card inserted into the table can control the cost of electricity, to prevent arrears in electricity, electronic or electromechanical energy meter; A meter can be used by multiple users, and each user is charged independently, so it can save resources and facilitate management. It is also conducive to remote automatic centralized meter reading. It is an electronic energy meter. Multifunctional energy meter integrates a number of functions in one, is an electronic energy meter; Carrier energy meter uses power carrier technology for remote automatic centralized meter reading, which is an electronic energy meter.