Introduce The Working Principle Of Electromechanical KWh Meter
Electromechanical KWh Meter , also known as induction single-phase electric energy meter, is designed using the principle of electromagnetic induction.
When the watt-hour meter is connected to the circuit under test, the voltage U of the circuit under test is applied to the voltage coil, and an alternating magnetic flux is formed in the iron core. A part of this magnetic flux ΦU passes through the aluminum plate from the return magnetic pole to the return. To the iron core of the voltage coil; in the same way, after the current I of the circuit under test passes through the current coil, an alternating magnetic flux Φi is also formed in the U-shaped iron core of the current coil. This magnetic flux is formed by U to one end of the iron core Pass through the aluminum plate from bottom to top, and then pass through the aluminum plate from top to bottom to return to the other end of the U-shaped iron core. The electric circuit and magnetic circuit of the watt-hour meter. Among them, the regenerative plate 4 is punched out of steel plate, and its lower end extends into the lower part of the aluminum plate, corresponding to the iron core column between the aluminum plate and the voltage component, to form a voltage coil The loop of working magnetic flux.
The above is the working principle of the Electromechanical KWh Meter. There is also an electronic type of watt-hour meter, and a three phase meter is an electronic type of electric energy meter. yhddb.com

Principle Of Electronic Energy Meter
An electric energy meter is a meter used to measure electric energy. The earliest electric meter should be an induction (mechanical) electric energy meter at the end of the 19th century. The electronic energy meter appeared later.
The electronic energy meter is mainly composed of voltage and current sampling and dedicated energy meter chips (such as BL0932B, ADE7755, etc.). Its task is to complete the accumulation and storage of each user's power consumption, and at the same time convert the power into corresponding pulses to be output or sent to the single-chip microcomputer for processing. The household electric energy metering unit is centrally installed on a printed circuit board, and its area is smaller than a paper cigarette box, one for each household, and each household is individually metered without affecting each other.
The structure of electronic energy meter and single phase meter is composed of voltage coil, current coil, turntable, rotating shaft, brake magnet, gear, counter and so on. It's just that the function deletion will be slightly different. yhddb.com

Electromechanical KWh Meter Current Understanding
In recent years, with the development of my country's economy, there are more and more household appliances in both urban and rural areas. Then the watt-hour meter has become a must-have thing for every household. Then there are many types of watt-hour meters, and you need to understand more if you waElectromechanical Kwh Meter Current Understandingnt to choose a watt-hour meter that suits your wishes. Today we will learn about the current understanding of the Electromechanical KWh Meter .
How to understand the current calibrated on the electric energy meter? There will be some current calibrations on the electric energy meter, such as 1.5(6)A 2.5(1A 5(2A 10(4A 15(6A 20(8A 30(10A, and so on. How do you understand this marked current, such as 10 (4 A means that the current flowing through the electric energy meter is allowed to be between 10A-40A, or the electric energy is 10A, and the maximum current is 40A.
Like the Electromechanical KWh Meter, the current understanding of the three phase meter is the same as the above.yhddb.com