Working Principle and Model of Electric Meter (2)
Energy meter type:
At present, the forms and functions of electric energy meters are various, and the model names of various electric energy meter brands are not exactly the same. Ordinary active energy meters only use two letters to indicate their functions and uses. Electric energy meters with special functions or electronic types use three letters to indicate their functions and uses. An example is as follows.
1. DD28 represents a single-phase electric energy meter. The first letter D represents the electric energy meter, the second letter D represents the single-phase, and 9Q is the design serial number.
2. DS862 represents a three-phase three-wire active energy meter. The first letter D represents the electric energy meter, the second letter S represents the three-phase three-wire, 86 is the design serial number, and 2 is the improvement serial number.
3. DT862 represents a three-phase four-wire active energy meter. D represents the electric energy meter, T represents the three-phase four-wire, 86 is the design serial number, and 2 represents the improvement serial number.
4. DJ means DC energy meter. D stands for electric energy meter, J stands for direct current.
5. DB stands for standard electric energy meter. D means energy meter, B means standard.
6. DZ represents the maximum demand electric energy meter. D represents the energy meter, and z represents the maximum demand.
7. DBS stands for three-phase three-wire standard electric energy meter. D means electric energy meter, B means standard, S means three-phase three-wire.
8. DBT stands for three-phase four-wire standard electric energy meter. D means electric energy meter, B means standard, T means three-phase four-wire.
9. DX8 means reactive energy meter. D stands for electric energy meter, X stands for reactive power, and 8 stands for design serial number.
10. DTM31 means three-phase four-wire pulse electric energy meter, D means electric energy meter, T means three-phase four-wire, M means pulse, and 31 is the design serial number. The electric energy meter with design serial number 33 is a reactive electric energy meter with the same function. The electric energy meter can be used in industrial and mining enterprises and various business units to measure active or reactive energy. It can collect pulse signals from a long distance, program and control electric energy, save manpower and improve work efficiency.
11. DTD18 represents a three-phase four-wire active multi-function energy meter. D means electric energy meter, T means three-phase four-wire, D means multi-function, 18 is the design serial number. In addition to the general metering function, the meter also has more than 40 functions such as peak-valley, normal segmental energy metering, maximum demand display, and demand accumulation. This meter is a meter that implements multi-rate, time-of-use pricing and reasonable electricity consumption in power-consuming departments such as industrial and mining enterprises.
