What is the working process inside the meter box?

The greater the power of the meter box, the greater the torque, and the faster the aluminum disk rotates. When the aluminum disk rotates, it is affected by the braking torque generated by the permanent magnet, and the braking torque is opposite to the active torque; The braking torque is proportional to the rotation speed of the aluminum disc. The faster the aluminum disc rotates, the greater the braking torque; When the driving torque and braking torque reach a temporary balance, the aluminum disc will rotate at a uniform speed; The electric energy consumed by the load is directly proportional to the number of revolutions of the aluminum plate. When the aluminum plate rotates, it drives the counter to indicate the consumed electric energy. This is the simple process inside the electric meter box.