Overview

DTU-900 distribution automation terminal is a new generation of products developed for more and more widely used ring network cabinets, switching stations and other places. It adopts a new type of high-voltage switch control device combining high-speed sampling chip and 32-bit high-speed control chip, which can quickly and stably complete the monitoring of high-voltage switches. It integrates protection, measurement, control, monitoring, communication, movement and other functions, and has the characteristics of high integration, flexible configuration and friendly interface.

is widely used in radiation power supply and ring network power supply system, can help the system to identify the line transient fault and permanent fault, can automatically eliminate the impact of instantaneous fault on the line, and can isolate the permanent fault section, to avoid long-term large-scale power outages, automatic recovery of non-fault section power supply, so as to realize the distribution network automation economically and practically.

Product Features

DTU-900 three remote distribution automation terminal device takes high-performance 32-bit microprocessor as the hardware development platform and high-efficiency embedded real-time operation as the software development platform. It has the following distinctive technical features:

◆ Unified core public platform

◇ Platform: Unified embedded software and hardware combination platform (CPU adopts self-developed 32-bit motherboard, main frequency can reach 240MHZ hardware platform with large information processing capacity and software platform of embedded multi-task real-time operating system), supports high-speed Ethernet bus and bus, and has large interface capacity.

◇ Storage: large-capacity FALSH and RAM, which can record the location, accident remote information and shift state-owned enterprises and other event sequence records, extreme value record data is stored locally for a period of not less than 1 month, and historical data supplement and upload are supported.

◆ Diversified configuration of communication mode and communication protocol

◇ It has 4 RS232/RS485 interfaces, baud rate 300-115200bps, 2 Ethernet ports, and supports 101, 104 and other protocols.

◇ Hardware configuration: independent communication management module and hardware configuration support main-standby interchange and redundancy design.

◇ Software configuration: Supports multiple communication methods and multiple communication protocols, and can communicate with multiple master stations of different levels at the same time.

◆ Flexible configuration of remote communication, remote control and remote measurement ◇ True modular design, standard general use of three remote function modules, and damage to any module will not affect the operation of other modules and systems.

◇ The three remote points are within the maximum capacity of the measurement and control unit, and the three remote function modules can be expanded as required. The number of three remote points exceeds the maximum capacity range of the measurement and control unit, and the function module can be expanded by expanding the bus.

◆ Intelligent power management

◇ Real-time monitoring of power supply, AC power loss and battery undervoltage alarm.

◇ Battery online management, support manual, automatic and remote activation.

◇ Battery charge and discharge protection, below the discharge off point automatically cut off the battery power supply.

It can provide a variety of working power supplies for terminals, communication equipment, remote control and remote control, with output short circuit protection. Support access to lead-acid batteries and lithium batteries.

◆ For maintenance, large LCD display, menu interface, keyboard operation and good human-computer interaction environment are adopted (optional).

◇ Provide various indicator lights to indicate the running status.

Provide remote and local maintenance interface, the operator can be in the local or master station and other remote maintenance.

◆Environmental aspects

Adapt to harsh environment, working temperature -40 ℃ ~ 70 ℃, anti-magnetic, moisture-proof, shockproof.

◇ Electromagnetic compatibility can reach level 4 and above requirements, and can adapt to strong electromagnetic environment.