Three Phase Four Wire Multi-tariff Electronic Meter supports import
and export metering
General introduction
DTSF217(T9-1) Three Phase Four Wire Multi-tariff Electronic Meter
supports import and export metering with TOU or step tariff
functions. It can record various events and meter can be read
during power outage.
Technical specifications
| Items | contents |
| Standards | IEC62052-11; IEC62053-21; IEC62053-22; IEC62053-23; |
| Accuracy | Active:Class 0.2S or Class 0.5S or Class 1.0;Reactive:Class 2 |
| Protocol | DL/T 645-2007 |
| Reference voltage | 3×57.7/100V;3×220/380V |
| Current | CT connection:1.5(6)A,5(6)A,5(10)A, Direct
connection:10(40)A,10(60)A,20(80)A,10(100)A |
| Reference frequency | 50/60Hz |
| Power consumption | <1.5W,6VA(For each phase) |
| Operation voltage range | 0.8Un~1.2Un |
| Limited operation voltage range | 0.7Un~1.3Un |
| Operation temperature range | -25℃~ +60℃ |
| Limited operation temperature range | -40℃~ +70℃ |
| RTC deviation | ≤0.5s/d |
| Life time | 15 years |
| Size | 290mm(L)×170mm(W)×85mm(H) |
| Net weight | About 2.8kg |
Main functions
1. Display and indication: It adopts a large screen LCD with
abundant graphics and hint text. The displayed contents can be
scrolled automatically or by button, and the displayed items can be
configured as per the requirements. It is with backlight. Meter can
be read during power outage.
2. Measurement: It can measure voltage, current, active power,
reactive power, apparent power, power factor, import and export
active maximum demand, and four quadrant reactive maximum demand.
It is with high accuracy. Class 0.2S, Class 0.5S or Class 1 for kWh
are available.
3. TOU: 4tariffs; Built-in 2 sets of time zone tables and 2 sets of
daily period tables, which can be configured as per the
requirements. The switching time for both 2 sets of time zone
tables and 2 sets of daily period tables can be set to achieve the
mutual switching. It can be set 14 time intervals and 254 holidays.
4. Data snapshot: It supports freezing which include daily
freezing, hourly freezing, occasional freezing, immediate freezing.
5. Event logs: It can separately record latest 10 times events,
such as power outage, programming, time correction, meter cover
open and terminal cover open, reset of events, reset of meter, etc.
6. Communication interface: The meter has one far infrared
interface, one RS485. Interfaces are independent. The protocol of
meter conforms to DL/T645-2007.
Our advantages
System Architecture Diagram
Q&A
Q1:What is the AMI system ?
A1:
Advanced Metering Infrastructure (AMI) is the technology of
automatically collecting data from energy metering devices and
transferring that data to a central database by communication
technology for remote control and analyzing. RS801E AMI system is
composed of management software, remote communication channel,
power management terminal, regional summary meter, local
communication channel, user energy meter and other equipments.
Power companies can build AMI system to replace the manual meter
reading to save human resources, reduce meter reading costs and
improve meter reading efficiency and success rate. The AMI system
reduces the error rate, the electricity loss and eliminates the
false meter reading by personnel. The AMI system also can monitor
the status of the users and find the abnormal information to alarm
in time. It also collects data from regional summary meter and the
regional line loss can be calculated. The software system is
developed by Java and it can be deployed on Windows, Unix, and
other major operating systems. The system is developed based on
Enterprise-class Jave EE standards, a three-tier technical
architecture (client / middleware server / database server) as the
basis for the system. The system has excellent openness,
scalability, flexibility and high reliability. Many advanced
computer and communication technologies are used on this AMI system
to satisfy the needs of power companies in different environments.
Q2:What is the smart energy meter? What are the functions of smart
energy meter?
A2:
As a new-type energy meter, smart energy meter adopts digital
metering technology, consists of measuring unit, data processing
unit, communication unit, etc., and has various functions such as
energy metering, data processing, real time monitoring, automatic
control, information exchange, etc.
In addition to the above functions, smart energy meter also
supports various actual requirements, such as bidirectional
metering, step tariff, TOU tariff, peak-valley tariff, etc. It’s
also the technology base to achieve distributed power measurement,
two-way interactive service, smart home and intelligent community.
