Keep Improvement for a Perfect product

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Keep Improvement for a Perfect product!
Outstanding technical features
Full series of functional units
Why should I choose DF1331?
Flexible system configurations
Biggest market share
Long stable running experience
Professional technical service
Continuous improvingupgrading
Software in windows environment
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Schematic Block Diagram
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Technical Features (3)
Full series of functional boards distributed
mounted IEDs
1) Main Communication Processor Unit --1331MCP
1331MCP-1 2) MODEM Mounting board -----1331MD 3)
DC analog input board -----1331AI 4) Digital
input board ----- 1331DI 5) Control output board
(Digital Output) ----- 1331DO 6) Display keyboard
unit ----- 1331LCD 7) AC analog signal sampling
board ----1331ACAI 8) Globe Position System clock
board ---- 1331GPS 9) Power supply unit----
1331PW 10) Intelligent Electronics
Devices----DF1725, DF1725A
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Technical Features (4)
All Boards can be plugged in or out with system
power on
In the cabinet of DF1331, it is electrically
isolated among all the boards and also between
the boards and the site connections. There are no
direct electrical connection among them. The
electrical-magnetic isolation, electrical-optical
isolation, and so on have been considered
thoroughly in the design. Each board can be
plugged in or out when the system in running
without damage to anything. This design
increases the stability of the whole system and
makes it convenient for the site debug and
maintenance.
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Technical Features (6)
Convenient Local and Remote Maintenance Functions
You can program the RTU with the provided
maintenance software in a portable computer on
site or even a thousand miles away through the
public telephone net or Internet. You can do
all the things remotely as you can in the
substation. Many things can be solved in your
office. No erase or write to the EPROM is needed.
With the remote maintenance function, our
support technician can also help you to keep the
DF1331 running in the correct mode.
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Main Functional Boards Introduction
1331MCP Main Communication Processor Unit
Data process and communication center of the
system, with 2 FDK-bus network interfaces for
managing all other functional boards, with 10
serial ports for communication with dispatch
centers or intelligent devices. 1331MD-1 MODEM
Mounting Board For installation of 13
channels 1331TJ MODEM, which are used for
modulation of digital channels to analog
channels. 1331AI Analog Input Board 64 DC
voltage signals or 32 DC current signals
sampling, sampling range 010V, 05V, 020mA,
01mA, 010mA, 420mA 1331DI Digital Input
Board 64 channels of state or pulse signals
sampling, SOE distinguish rate 12 ms, input
signal voltage 24VDC/ 48VDC/ 110VDC/220VDC
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Main Functional Boards Introduction
1331DO Control Output Board 16 channel
trip/close control output 1331ACAI AC Analog
input Board 40 direct input AC signal sample
channels can sample 8 circuits full electrical
parameters in 3 meters modes or 12 circuits full
electrical parameters in 2 meters mode when
working in common VT mode. 1331AO Analog Output
Board 4 channels analog signals outputs and 2
BCD codes channels output. 1331GPS Satellite
Clock Synchronous Board Provide standard time
signal from the GPS receiver unit to the DF1331
system. 1331PW Power Supply Unit Provide power
supply to the DF1331 cabinet and all the
functional boards has the dual AC/DC power
supply automatically switch function. Others

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Full series of terminal units
Easy
1331DIT-220
1331AIT
1331DIT-24
1331DOT
1331CUT 1331VOT
Quick
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Maintenance, installation and configuration
software in a familiar windows environment
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Typical Configuration Proposals (2)
With station layer computers
It is a typical proposal for substation
automation system, which is especially suitable
for the improvement of the substation automation
system with few persons on duty.
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Improved DF1331RTU
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Technical Support Information
Dispatch Automation Division of Dongfang
Electronics takes the responsibility of the SCADA
and RTU development and service through the value
added reseller Cetrex in Sweden. Cetrex has
access to 186 technicians, among them there are
11 doctors, 72masters and 103 bachelors. All
installation drawing is made with autocad
software and saved in dwg files.
Technician Cake form Chart
Statistic Time Oct. 2001
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Contact Us

• Telephone[phone]
• Mobilephone 073-9397272
• Email daniel_at_cetrex.se