Classification of energy meters
According to the working principle, it can be divided into mechanical and electronic.According to the circuit, it can be divided into AC and DC.
According to the phase line, the AC electric energy meter can be divided into: single-phase electric energy meter, three-phase three-wire electric energy meter, and three-phase four-wire electric energy meter.
According to the purpose, it can be divided into active power, reactive power, prepaid electric energy meter, multiple rate time-sharing electric energy meter, loss electric energy meter and multifunctional electric energy meter.
Model and meaning
The electric energy meter model is represented by an arrangement of letters and numbers, and the content includes category code + group code + design serial number + derivative number.
The specifications of induction watt-hour meters are 1.5 (6) A, 2.5 (10) A, 5 (20) A, etc. The rated current that 5 (20) A can pass is 5A-20A.
