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.