There are many forms of electric energy meters, and different electric energy meters have different principles when they are used. In simple terms, let’s take a look at the working principle of single-phase electric energy meters. In daily life, I believe that each family The use of single-line energy meters should be relatively familiar. After all, this kind of energy meters is simple to use and very convenient to operate, not to mention the safety and reliability of the performance, which plays an important role in many aspects. Because the structure is very simple, the working principle is also very easy to understand, now let's take a look.

When using a single-phase energy meter, first, when the energy meter is contacted with the circuit under test, the voltage on the north side circuit will be loaded onto the voltage coil, and the current in the measured current flows through the current coil after startup It will generate two alternating magnetic fields and pass through the green disk on the single-line meter. These two magnetic fields are the same in time, so they can cause eddy currents on the green disk of the energy meter. We all know that the magnetic flux and the eddy current will interact with each other after they meet, and produce a rotating torque, etc., so that the aluminum disk will rotate, and the magnetic flux of the magnet will also brake and pass through the aluminum disk. Wait until the aluminum disk After rotating, the magnetic flux is cut off, because after the magnetic flux is cut off, the aluminum plate can directly sense the current. After the current and the magnet of the brake magnet interact with each other, they will interact with the aluminum plate. When a braking torque in the opposite direction is generated, the rotation speed of the aluminum disc will be uniform.

However, because the magnetic flux and the voltage and current in the circuit have formed a certain ratio, after the aluminum disk rotates, the electric energy consumed in the circuit will form a certain ratio. In simple terms, the energy meter is in When working, the larger the load strategy is, the faster the aluminum disk will rotate accordingly. The faster the aluminum disk rotates. After passing the worm drive counter, the counter will automatically accumulate the actual consumption in the line. Electrical energy.

Single-phase watt-hour meters are generally used to measure the electric energy of the line when used to measure single-phase lines, such as the genius that can measure three-phase four-wire lines, but three elements and three watts must be used when testing Table, if you want to measure the energy of the three-phase three-wire system, the equipment used is a two-element three-meter meter, but whether it is measuring a single energy meter or a three-meter meter, most of the working principles of each other are It is the same, the difference is only the difference between the number of unit pieces and components on the structure of the energy meter, and it is not difficult to understand.

Use in life The above single-item active energy meter is also divided into two forms, one is called a direct-type energy meter, and another is called a transformer-connected energy meter. Among these two types, the direct-type energy meter is also It can be divided into two types: jump-in electric energy meter and forward electric energy meter. During installation, the rated voltage of the energy meter and the connected power supply should be consistent, and the rated current should also be equal to or greater than For the load current, exclusive insulated copper wire should be used when linking, and the cross section should also meet the use of the load current. There is no way to connect the phase line and the neutral line, and the neutral line must also enter the energy meter. Professional manufacturer of rail type electric energy meter and mechanical electric energy meter

Zhejiang Tepsung Electric Meter Co., Ltd . is a manufacturer and supplier of    single phase meter   , three-phase electric meters,    electronic energy meter   and digital electric energy meters. We have established a mature and professional team in the design, production and sales of electric meters. https://www.yhddb.com/product/electronic-kwh-meter/