Anti theft electricity meter is a fully electronic intelligent multi-user electricity meter widely used for electricity measurement in industrial and mining enterprises, urban and rural residential areas, student apartments, rural power grids, old building renovations, and high-rise buildings.
An electric energy meter is an instrument used to measure electrical energy, also known as a kilowatt hour meter, fire meter, or kilowatt hour meter. It refers to an instrument used to measure various electrical quantities. When using an electric energy meter, it should be noted that the meter can be directly connected to the circuit for measurement under low voltage (not exceeding 500 volts) and low current (several tens of amperes) conditions. In the case of high voltage or high current, the electric energy meter cannot be directly connected to the line and needs to be used in conjunction with voltage transformers or current transformers.
The working principle of an electric energy meter: When the meter is connected to the circuit under test, alternating current flows through the current coil and voltage coil, and these two alternating currents generate alternating magnetic flux in their iron cores; Alternating magnetic flux passes through the aluminum disk, inducing eddy currents in the aluminum disk; Eddy currents are subjected to force in the magnetic field, causing the aluminum disk to receive torque (active torque) and rotate. The greater the power consumed by the load, the greater the current passing through the current coil, and the greater the eddy current induced in the aluminum disk, resulting in a greater torque for the aluminum disk to rotate. The magnitude of torque is directly proportional to the power consumed by the load. The greater the power, the greater the torque, and the faster the aluminum disk rotates. When the aluminum disc rotates, it is subjected to the braking torque generated by the permanent magnet, which is opposite in direction to the active torque; The magnitude of the braking torque is directly proportional to the rotational speed of the aluminum disc, and the faster the aluminum disc rotates, the greater the braking torque. When the active torque and braking torque reach a temporary equilibrium, the aluminum disc will rotate at a constant speed. The electrical energy consumed by the load is directly proportional to the number of revolutions of the aluminum disk. When the aluminum disk rotates, it drives the counter to indicate the consumed electrical energy. This is the simple process of an electric energy meter working.
Installation size
Multi user table with 12 household sizes
Multi user table with 18 household sizes
Multi user table with 24 household sizes
Multi user table with 54 household sizes
Wiring diagram
Multi user table direct access - wiring diagramMulti user table external transformer type - wiring diagram