Classification Of Commonly Used Electric Energy Meters

(1) The electric energy meter can be divided into DC electric energy meter and AC electric energy meter according to the circuit used. AC electric energy meters can be divided into single-phase electric energy meters, three-phase three-wire electric energy meters and three-phase four-wire electric energy meters according to their phase lines.

(2) Electric energy meters can be divided into electrical mechanical energy meters and electronic energy meters (also known as static energy meters, solid-state energy meters) according to their working principles. Electrical mechanical energy meters are used in AC circuits as common energy measuring instruments, and the most commonly used one is induction energy meters. Electronic watt-hour meters can be divided into fully electronic watt-hour meters and electromechanical watt-hour meters.

(3) The electric energy meter can be divided into integral electric energy meter and split electric energy meter according to its structure.

(4) Electric energy meters can be divided into active energy meters, reactive energy meters, maximum demand meters, standard energy meters, multi-rate time-sharing energy meters, prepaid energy meters, loss energy meters, and multifunctional energy meters according to their uses. Wait.

(5) The electric energy meter can be divided into ordinary installation electric energy meter (0.2, 0.5, 1.0, 2.0, 3.0 grade) and portable precision electric energy meter (0.01, 0.02, 0.05, 0.1, 0.2 grade) according to its accuracy grade.