Through understanding, we can know that the electronic energy meter uses a dedicated electronic energy meter integrated circuit to process the sampled voltage and current signals and multiplies them into a pulse output display proportional to the electric energy by sampling the user's supply voltage and current in real-time. According to needs, the stored data (electricity, etc.) can also be uploaded to the upper computer (master station) according to the prescribed protocol (communication protocol), and the upper computer can also manage the use and sales of electricity meters. Because of its unparalleled advantages of induction electric energy meters, it has developed rapidly in recent years. The inductive watt-hour meter is replaced with a fully electronic watt-hour meter. In developed countries, it is replaced at an average annual rate of over 20%. In our country, due to the late start, insufficient propaganda intensity and breadth, and people's insufficient understanding of all-electronic energy meters, the development is slow. However, with the change and progress of technology and the times, the use of electronic energy meters has become more and more popular in recent years. Relatively speaking, although the single phase meter is still widely used, the convenience and accuracy of use are still more convenient than the electronic energy meter.

I believe that everyone has a certain understanding of single-phase electric meters. After all, electric meters are an indispensable part of our daily lives. So let's talk about some understanding of single phase meter . We know that the electric energy meter uses the eddy current generated by the voltage and current coils on the aluminum plate to interact with the alternating magnetic flux to generate electromagnetic force, which makes the aluminum plate rotate, and at the same time introduces the braking torque, so that the aluminum plate speed is proportional to the load power. Through the axial gear transmission, the number of rotations of the turntable is calculated by the counter to measure the electric energy. A single-phase meter is a device used to measure electricity consumption in ordinary civil household circuits, which are used to supply power to various household appliances. A Single-phase meter has the characteristics of low energy consumption and high reliability. It is an ideal product for reforming the electricity system and realizing the commercialization of electric energy. The functions of a single-phase meter, including use and installation, are not very different from other electric meters, but the functions of electronic energy meter are slightly more than that of a single-phase meter.

For single phase meters, many people should have seen them. We all know that single-phase ammeters are used to measure current consumption. Do you know the components of single phase meter ? The single phase meter uses the eddy current generated by the voltage and current coils on the aluminum plate to interact with the alternating magnetic flux to generate electromagnetic force, which makes the aluminum plate rotate, and at the same time introduces the braking torque, so that the aluminum plate speed is proportional to the load power. It is driven by gears, and the number of turns of the turntable is calculated by the counter to measure the electric energy. Therefore, the main structure of the watt-hour meter is composed of voltage coil, current coil, turntable, shaft, brake magnet, gear, counter, etc. Although there are still a lot of single phase meters in use now, after the emergence of electronic energy meters, the calculation of electronic energy meter has become more accurate, and more and more families use electronic electric meters.

Zhejiang Tianpusheng Electric Co., Ltd. is one of the largest manufacturers of electric energy meters in Taizhou City, Zhejiang Province, China. One of the products we promote is the digital kWh meter. Now let's share some precautions for the selection and installation of electric meters. First of all, we must first understand the choice of meter capacity: The capacity of the electric meter should be selected between 20% and 120% of the rated current of the electric meter. Single-phase 220V lighting device should be calculated at 5A per kilowatt, and three-phase 380V power should be calculated at 1.5A or 2A per kilovolt. Secondly, we must understand the current size of the electric meter: the rated current of the general household electric meter should not be greater than 10A The installation of the electric meter: 1. The meter should be installed on a wall or switch board that is not easily affected by vibration, and the distance from the ground should be between 1.7 and 2 meters; 2. The place where the meter is installed should be clean, dry, and free of strong magnetic fields, and try to set it in an obvious place for reading and monitoring; 3. The electric meter should be installed in the box where it is vulnerable to mechanical damage and dirt and easy to touch; 4. The meter should be installed vertically, and the allowable deviation should not exceed 2°; Power-on inspection: Power on and check whether the meter is working properly. If there are abnormal phenomena such as non-rotation, reversal and excessive error, the reasons should be analyzed and eliminated. Most of the causes of these failures are wiring errors. The reason for the reversal is not only the polarity of the voltage and current coils, and the polarity of the current and voltage transformers, but also the load malfunction. For example, in the load of a three-phase active watt-hour meter, when the motor with a larger capacity runs overspeed, the motor becomes a generator running, and the active watt-hour meter will reverse. Calculate and verify the operation of the meter: The meter should be calculated and checked after being put into use for a period of time. Sometimes, although the wiring is wrong, it is difficult to observe from the running state of the watt-hour meter alone. It is necessary to calculate according to the power of the load, power factor and working time, and compare the calculation result with the reading of the meter to confirm the reliable operation of the meter . With the comprehensive advantages of price, quality and technology, our company's products can be seen everywhere. If you are interested in buying our products, please click on the link to contact us: electronic kwh meter manufacturer. Thinking of you and wishing you a beautiful Christmas season.

Zhejiang Tianpusheng Electric Co., Ltd. is one of the largest manufacturers of electric energy meters in Taizhou City, Zhejiang Province, China. One of the products we promote is the single phase meter. Let's briefly introduce the single phase electric energy meter. Single-phase electric energy meter wiring method: There are two ways to connect the meter: jump-in connection and direct plug-in connection; the two wiring methods are different in general, and the internal principle is the same, that is, the current coil of the ammeter is inserted into the load circuit, and the voltage coil is connected to the load circuit. The load is connected in parallel, "the energy of the two coils should be connected." The polarity of the power supply is the same. Generally, single-phase electric energy meters have special junction boxes. When the lid is opened, there are four terminal buttons. Which method is used for actual wiring should be carried out in accordance with the regulations in the instrument specification. In low voltage, low current, single-phase circuits, the meter can be directly connected to the line. If the load current is high or the voltage is high, the transformer should be connected to the circuit. At this time, the primary side of the current transformer is connected in series with the load, the secondary is connected in series with the current coil of the electric energy meter, the primary of the voltage transformer is connected in parallel with the load, and the secondary is connected in parallel with the voltage coil of the electric energy meter. Description 1. Reasonable selection of electric meters: First, select single-phase or three-phase electric meters according to the task. For a three-phase electric energy meter, it should be selected according to whether the line to be tested is a three-phase three-wire system or a three-phase four-wire system. Secondly, the selection of rated voltage and current must make the load voltage and current equal to or less than its rated value. 2. Electric meter device: The electric meter is usually equipped with a power distribution device. The meter should be installed under the power distribution device, and its center is 1.5 to 1.8 meters from the ground; when the parallel device is more than one meter, the distance between two meters should not be less than 200 mm; different electricity prices The power line should be separately loaded; the power line of the same price should be combined with the meter; when installing the meter, the body should be perpendicular to the ground, otherwise it will affect its accuracy. degree. 3. Correct wiring: According to the requirements of the manual and wiring diagram, the input and output wires should be connected to the outlet of the instrument. Wiring should pay attention to the phase sequence of the power supply, especially the reactive power meter. Phase sequence; after the wiring is completed, the correctness must be checked before it can be closed. With the comprehensive advantages of price, quality and technology, the company's products can be seen everywhere. If you are interested in purchasing our products, please click on the link to contact us: electronic energy meter manufacturer.

The function of remote mechanical kWh meter reading 1. Correctly recognize the value displayed on the meter and send the value back correctly. 2. The central control room can directly read the readings of the on-site users' electric meters, which can be read in batches or individually, and the historical data of the readings can be automatically saved. 3. Perform statistics, billing, and dual-address storage of the received electricity meter data, and form detailed electricity consumption files. 4. It can be used for on-site or remote power calibration. 5. Quickly conduct electricity consumption inquiries by electricity users. 6. Time-of-time meter reading, realizing time-of-use billing, which can solve the peak-to-valley price method adopted during the peak and valley period of the grid load. Features of remote meter reading 1. Remote meter reading. The remote automatic meter reading function is directly implemented in the central control room, which can form a regional meter reading network centered on the central control room. 2. Reliable communication. As the antenna fixed-point communication is adopted, after the installation height is completed according to the technical requirements, the communication can be carried out for 24 hours, and it is not affected by the fluctuation of the power grid. 3. Fast. Due to the high meter reading rate, about one meter per second, meter reading and billing can be performed in time intervals. 4. Advanced technical means. Recognize the meter reading through the electronic eye and strictly keep the electronic reading consistent with the meter reading. 5. Periodic readings. According to different instructions, the central control room can perform designated periodic readings of the meters in the network once a month, once a day or several times a day. 6. It can be integrated with the prepaid electricity meter charging system.

Electronic kilo watt-hour meter, also known as static watt-hour meters, are a new type of watt-hour meter that has developed rapidly in recent years. With the economic development needs of the power market and the development of microelectronic technology, electronic watt-hour meters are Unique functions are widely used in the automation of electric power production, intelligent electric energy metering and power management, and the demand is getting higher and higher. In order to measure electric energy correctly and charge reasonably, electronic energy meters play an extremely important role. The commonly used induction electric energy meters are restricted by their working principle, manufacturing process, manufacturing materials, etc., so they are limited in reducing the power consumption of the meter, improving the accuracy of the meter and developing the function of the meter. The electronic energy meter has obvious advantages in these aspects. In the use of electronic watt-hour meters, not only has gradually changed the old concept of "electronic watt-hour meters are unreliable and unstable", but also demonstrated many advantages in the performance and functions of electronic watt-hour meters. It is a new type of electric energy meter with a working principle completely different from the traditional induction electric energy meter. With the development of electronic technology and the improvement of the quality of electronic components, some domestic and foreign single phase energy meter and three-phase electric energy meters have gradually been Promote use.

prepaid electricity meter: First of all, there is prepaid function, and it must have a 485 communication interface, and the meter software must be able to realize remote recharge and remote on-off control. Then there are separate rates and multi-rate models. When you want to make a network, it can be made into wired, wireless, GPRS, LAN, etc., and the manufacturer provides supporting software. Prepaid watt-hour meters are also called quantitative watt-hour meters and IC card watt-hour meters. In addition to the measurement function of ordinary watt-hour meters, users first buy electricity, and then can use electricity. If the user does not continue after the electricity is used up If you buy electricity, it will automatically cut off the power to stop the power supply. It is used to measure AC single-phase active energy with a rated frequency of 50Hz, and realize the management function of paying first and then using electricity. Adopt advanced microelectronic technology for data collection, processing and storage, and use radio frequency card to transmit data. Its performance indicators meet the standards of GB/T17215-2002 and GB/T18460.3-2001. It has the characteristics of small size, high safety, high reliability, and anti-theft. Clearing operation on the prepaid meter 1. Power off the meter to be reset for 10 seconds before inserting the reset card, and the meter displays E=00. It is successful. 2. Then insert the preset card, the meter will display 20 kWh of electricity, and start to run. 3. Insert the electronic energy meter purchase card of the new user.

The common type of electric meter is  Electromechanical KWh Meter On a single-phase AC power supply, an electromechanical induction meter operates by electromagnetic induction by counting the rotation of a non-magnetic but conductive metal disk. The rotation speed of the disk is proportional to the power passing through the meter. Therefore, the number of revolutions is directly proportional to energy usage. The voltage coil consumes a small amount of relatively constant power, usually about 2 watts, which is not recorded on the meter. Similarly, the current coil consumes a small amount of power in proportion to the square of the current flowing through it, usually up to a few watts under full load, and this power is recorded on the meter. The disc is acted by two groups of induction coils, which actually forms a two-phase linear induction motor. One coil is connected in such a way that it generates a magnetic flux proportional to the voltage, while the other coil generates a magnetic flux proportional to the current. Due to the inductance of the coil, the magnetic field of the voltage coil will be delayed by 90 degrees, and a hysteresis coil is used for calibration. This creates eddy currents in the disk, whose role is to make the force proportional to the product of the instantaneous current, voltage, and phase angle (power factor) between the disk. The permanent magnet acts as an eddy current brake, exerting a reaction force proportional to the rotation speed of the disk. The balance between these two opposing forces causes the disk to rotate at a speed proportional to the power or energy usage rate. The optical disc drives an alignment mechanism that counts the number of revolutions, much like an odometer in a car, in order to measure the total energy used. Different phase configurations use additional voltage and current coils. Three-camera electric induction meter, measuring 100 A 240/415 V power supply. A horizontal aluminum rotor disc can be seen in the center of the instrument. The disc is supported by a spindle with a worm gear that drives the register. The register is a series of dials that record the power consumed. The dial can be an odometer type, similar to the display of an odometer, easy to read, where each dial displays a number through a window on the surface of the meter, or a pointer type, where the pointer indicates each number. For the dial pointer type, adjacent pointers usually rotate in opposite directions due to the gear mechanism. The amount of energy represented by one rotation of the disc is represented by the symbol Kh, which is given in units of watt-hour/revolution. The value 7.2 is common. Using the Kh value, it is possible to determine their power consumption at any given time by timing the discs with a stopwatch. {\ displaystyle P = {{3600 \ cdot Kh} \ over t}} P = {{3600 \ cdot Kh} \ over t}.   t = the time it takes for the disc to complete one lap, in seconds,P = power (watts).For example, if Kh = 7.2, and it makes one revolution in 14.4 seconds, the power is 1800 watts. This method can be used to determine the power consumption of the household devices by turning on the household devices one by one. Most household electricity meters must be manually read by a representative of the power company or customer. Where the customer reads the meter, the reading can be provided to the power company by phone, mail, or via the Internet. The power company will usually require company representatives to visit at least once a year to verify the readings provided by the customer and perform basic safety checks on the meter. In an induction meter, creep is a phenomenon that may adversely affect accuracy. Creep occurs when the meter dial is continuously rotated under the condition of an applied electric potential and the load terminal is open. The erroneous test caused by creep is called creep test. There are two standards for instrument accuracy, ANSI C12.20 and IEC 62053 in North America. Zhejiang Tepsung Electric Meter Co., Ltd   is a professional manufacturer and supplier of three phase meter and Electromechanical KWh Meter . Single-phase electronic watt-hour meters have high accuracy, low power consumption, small starting current, wide load range, and no mechanical wear; three-phase electronic watt-hour meters use large integrated circuits, which are easy to operate and efficient. More than 40 model products have obtained international certificates and type test reports: ISO9001, KEMA, CE, STS certificates and more domestic certificates. More products at https://www.yhddb.com/product/electromechanical-kwh-meter/

We are increasingly seeing a trend where more and more power distribution companies choose to include their customers in their power supply plans. These are usually run through a prepaid meter, in which the user purchases a certain amount of vouchers worth a certain amount, and when these vouchers are entered into the prepaid meter, they can be provided with a certain amount of electricity bills. When you consider the number of electric meters you buy every day, you know how big this trend is. Look at the number of emerging companies. These companies take the manufacturing and distribution of prepaid meters as their core business to determine the level of demand for meters. Of course, most of these meters are not purchased by individuals, but by distribution companies, which continue to sell and install them for customers. A single power user cannot decide to switch to the prepaid power distribution system. Instead, it is the power company that provides this option for its customers. Therefore, all these make us think of a question, why more power distribution companies choose this kind of prepaid meters than traditional postpaid meters, and traditional postpaid meters have served them for many years. Facts have proved that many factors are considered to cause more and more power distribution companies to choose these prepaid meters. First, the fact is that it is usually more convenient to run an electricity billing system than a post-paid electricity billing system. In fact, in terms of convenience, these two systems are simply unparalleled when you think about it. Postpaid systems usually do not involve manual meter reading, and then calculate the bill based on the meter reading (this is usually a very complicated task), and then send the bill to the electricity user in turn, and collect the electricity bill. User payment. In terms of operational convenience, it is not even possible to start comparing the two systems. Therefore, the power distribution company has shown openness to the prepaid system. There are also some cost considerations. These factors strongly indicate that, in general, the power distribution system is much cheaper to operate than the post-paid system. Here, we are working on a system that does not use meter readers, rate collectors or (usually necessary) lawyers to initiate legal proceedings against breaches. There is also the fact that power users seem to prefer the power system. This preference is caused by the fact that the prepaid power system provides them with more control over their power system, and in general, it is more convenient than traditional postpaid systems. Therefore, even power companies that are not particularly fond of prepaid electricity meters still find themselves having to develop a prepaid electricity system due to customer demand.   Zhejiang Tepsung Electric Meter Co., Ltd . is a professional manufacturer and supplier of   prepaid electricity meter   . We ensure the quality of our products through strict testing procedures and have won wide acclaim at home and abroad. Welcome to consult product information: https://www.yhddb.com/product/prepaid-kwh-meter/