Working principle of three-phase electricity meter

The electromagnetic element of the three-phase four wire active and reactive watt hour meter is a separate structure. The voltage movement adopts a closed sample movement made of integral punching. The rotating system is subject to accurate static balance. Its bearing is a double gem structure with shockproof spring. The damping element adopts aluminum cobalt 34 magnetic steel and temperature compensation with thermal magnetic alloy sheet. The watt hour meter is composed of voltage and current elements to generate - move into the magnetic field to make the disk rotate under its action. The rotating speed of the disk is directly proportional to the size of the load current, so as to achieve the purpose of measuring electric energy.