Such as our commonly used household single-phase watt-hour meters: DD862-4, DDS97l, DDSY97l, etc.
1, category code: D- watt-hour meter
2. The group code indicates the phase line: D- single phase; S- three-phase three-wire; Three-phase four-wire system.
Usage classification: D- Multifunctional; S- electron; X- reactive power; Y- advance payment; Compound interest rate.
Extended data
The design serial number is represented by Arabic numerals, and the design serial number of each manufacturer is different. For example, the product number of the electric energy meter designed and produced by Changsha Szimeth Electronic Technology Development Co., Ltd. is 97 1, and that of Zheng Tai Company is 666.
Summarize the above points:
DD- stands for single-phase electric energy meter, such as DD97 1 DD862? DS- stands for three-phase three-wire active watt-hour meter, such as DS862 and DS97l? Dt- stands for three-phase four-wire active watt-hour meter, such as DT862, DT97 1? DX- stands for reactive power meters, such as DX97l and DX864.
DDS- stands for single-phase electronic watt-hour meter: for example, DDS97l.
D?s-stands of three-phase four-wire electronic active watt-hour meter: such as DTS97l? DDSY- stands for single-phase electronic prepayment watt-hour meter, such as DDSY97l.
DTSF97l stands for three-phase four-wire electronic multi-rate active energy meter; Such as DTSF97l? DSSD97l stands for three-phase three-wire multifunctional watt-hour meter, such as DSSD97l.
Basic current and rated maximum current:
The basic current is the current value that determines the relevant characteristics of the electric energy meter, and the rated maximum current is the maximum current value that the instrument can meet the precision specified in its manufacturing standard.