Overview of type 1 three-phase local charge control smart energy meter (CPU card-switch internal/external)
DTZY88C type 1 three-phase local charge control smart energy meter (CPU card-switch internal/external) is a new generation of high-precision intelligent three-phase energy meter, with active and reactive energy time-sharing measurement, data processing, event recording, Load recording, automatic control, information interaction and other functions, use large-screen LCD display to facilitate reading of data, and provide infrared and remote communication interfaces to facilitate remote computer management in power departments. On this basis, functions such as AC magnetic field anti-submarine, power abnormality monitoring, load switch misoperation detection, anti-magnetic and constant magnetic field monitoring are added, which greatly enhances the anti-theft performance and operational reliability. This smart meter adopts a variety of software and hardware anti-interference measures and redundant design. It is manufactured by large-scale integrated circuit and SMT technology. The key components are selected from internationally renowned brands of long-life components, which makes this energy meter highly reliable and more reliable. Long operating life.
two. The main parameters
1. Accuracy: Active power level 1 and reactive power level 2.
2. Rated voltage (Un): 3×220/380V
3. Limit working voltage: 0.6Un~1.2Un.
4. Current specification: 5(60)A.
5. Basic error, starting and creeping: meet the requirements of GB/T17215.321-2008.
6. Dimensions: 290mm×170mm×85mm.
7. Installation size: 240(256)mm×150mm.
8. Comply with the following relevant specifications:
Q／GDW 1354-2013 functional specification of smart electric energy meter;
Q／GDW 1356-2013 Three-phase smart electric energy meter type specification;
Q/GDW 1827-2013 three-phase smart electric energy meter technical specifications;
Q/GDW 1365-2013 Smart Energy Meter Information Exchange Safety Certification Technical Specification;
DL/T 645-2007 Multi-function electric energy meter communication protocol and its filing documents;
DL/T 614-2007 Multifunctional electric energy meter.
three. The main function
1. Support 4 rates, maximum 14 time zones throughout the year, 14 time periods can be set every day, two sets of rate timetable switching, and special timetable settings for holidays.
2. Support the data storage function, which can store the two-way total electric energy and the electric energy data of various tariffs for the last 12 settlement days.
3. Support freezing function, with time freezing, instantaneous freezing, daily freezing, agreed freezing, and whole point freezing.
4. Support event recording function, can record the total number of power failures, the total number of programming, the total number of times of calibration, the total number of open meter cover, pull and close events; can permanently record the time of the electric meter reset event and the time of reset Electricity data, etc.
5. With load recording function, it can be defined from DL/T 645-2007 "voltage, current, frequency", "existing and reactive power", "power factor", "existing and reactive total energy", "four quadrants" Any combination of the six types of data items "total reactive energy" and "current demand".
6. Support local fee control function, realized through solid-state media (CPU card) and electricity sales system, and can set the electricity parameters in the electric energy meter, and pull and close commands.
7. Support alarm function, with light alarm output. The light alarm is indicated by lighting the backlight, and the alarm will automatically end when the event returns to normal.
8. Support safety authentication and other functions. When parameter setting or issuing remote control commands for the electric energy meter through solid-state media (CPU card), pass the ESAM module safety authentication to ensure safe and reliable data transmission.
9. It has 1 infrared communication interface and 1 RS485 communication interface.
10. The load switch has two modes: built-in and external.
11. Support power failure wake-up function.